diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index 25c2b9f..0000000
Binary files a/.DS_Store and /dev/null differ
diff --git a/.gitignore b/.gitignore
index 24e6a2a..99c43f7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -349,3 +349,4 @@ hs_err_pid*
 # End of https://www.toptal.com/developers/gitignore/api/flutter,intellij,androidstudio,xcode,dart
 
 *.idea*
+**/.DS_store
diff --git a/analysis_options.yaml b/analysis_options.yaml
index 61b6c4d..5e39472 100644
--- a/analysis_options.yaml
+++ b/analysis_options.yaml
@@ -24,6 +24,10 @@ linter:
   rules:
     # avoid_print: false  # Uncomment to disable the `avoid_print` rule
     # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+    file_names: false
+    prefer_relative_imports: true
+    unnecessary_lambdas: true
+    prefer_single_quotes: true
 
 # Additional information about this file can be found at
 # https://dart.dev/guides/language/analysis-options
diff --git a/lib/api/apiError.dart b/lib/api/apiError.dart
index e689532..039774e 100644
--- a/lib/api/apiError.dart
+++ b/lib/api/apiError.dart
@@ -5,6 +5,6 @@ class ApiError {
 
   @override
   String toString() {
-    return "ApiError: $message";
+    return 'ApiError: $message';
   }
 }
\ No newline at end of file
diff --git a/lib/api/holidays/getHolidays.dart b/lib/api/holidays/getHolidays.dart
index f8a4a4c..641884e 100644
--- a/lib/api/holidays/getHolidays.dart
+++ b/lib/api/holidays/getHolidays.dart
@@ -6,11 +6,11 @@ import 'getHolidaysResponse.dart';
 
 class GetHolidays {
   Future<GetHolidaysResponse> query() async {
-    String response = (await http.get(Uri.parse("https://ferien-api.de/api/v1/holidays/HE"))).body;
+    String response = (await http.get(Uri.parse('https://ferien-api.de/api/v1/holidays/HE'))).body;
     return GetHolidaysResponse(
         List<GetHolidaysResponseObject>.from(
             jsonDecode(response).map<GetHolidaysResponseObject>(
-                    (dynamic i) => GetHolidaysResponseObject.fromJson(i)
+                    GetHolidaysResponseObject.fromJson
             )
         )
     );
diff --git a/lib/api/holidays/getHolidaysCache.dart b/lib/api/holidays/getHolidaysCache.dart
index 3c15db7..1803bd7 100644
--- a/lib/api/holidays/getHolidaysCache.dart
+++ b/lib/api/holidays/getHolidaysCache.dart
@@ -6,7 +6,7 @@ import 'getHolidaysResponse.dart';
 
 class GetHolidaysCache extends RequestCache<GetHolidaysResponse> {
   GetHolidaysCache({onUpdate, renew}) : super(RequestCache.cacheDay, onUpdate, renew: renew) {
-    start("MarianumMobile", "state-holidays");
+    start('MarianumMobile', 'state-holidays');
   }
 
   @override
@@ -15,6 +15,7 @@ class GetHolidaysCache extends RequestCache<GetHolidaysResponse> {
     return GetHolidaysResponse(
         List<GetHolidaysResponseObject>.from(
             parsedListJson.map<GetHolidaysResponseObject>(
+                    // ignore: unnecessary_lambdas
                     (dynamic i) => GetHolidaysResponseObject.fromJson(i)
             )
         )
diff --git a/lib/api/marianumcloud/autocomplete/autocompleteApi.dart b/lib/api/marianumcloud/autocomplete/autocompleteApi.dart
index 11481f2..194fe24 100644
--- a/lib/api/marianumcloud/autocomplete/autocompleteApi.dart
+++ b/lib/api/marianumcloud/autocomplete/autocompleteApi.dart
@@ -11,21 +11,21 @@ import 'autocompleteResponse.dart';
 class AutocompleteApi {
   Future<AutocompleteResponse> find(String query) async {
     Map<String, dynamic> getParameters = {
-      "search": query,
-      "itemType": " ",
-      "itemId": " ",
-      "shareTypes[]": ["0"],
-      "limit": "10",
+      'search': query,
+      'itemType': ' ',
+      'itemId': ' ',
+      'shareTypes[]': ['0'],
+      'limit': '10',
     };
 
     Map<String, String> headers = {};
-    headers.putIfAbsent("Accept", () => "application/json");
-    headers.putIfAbsent("OCS-APIRequest", () => "true");
+    headers.putIfAbsent('Accept', () => 'application/json');
+    headers.putIfAbsent('OCS-APIRequest', () => 'true');
 
-    Uri endpoint = Uri.https("${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().domain}", "${EndpointData().nextcloud().path}/ocs/v2.php/core/autocomplete/get", getParameters);
+    Uri endpoint = Uri.https('${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().domain}', '${EndpointData().nextcloud().path}/ocs/v2.php/core/autocomplete/get', getParameters);
 
     Response response = await http.get(endpoint, headers: headers);
-    if(response.statusCode != HttpStatus.ok) throw Exception("Api call failed with ${response.statusCode}: ${response.body}");
+    if(response.statusCode != HttpStatus.ok) throw Exception('Api call failed with ${response.statusCode}: ${response.body}');
     String result = response.body;
     return AutocompleteResponse.fromJson(jsonDecode(result)['ocs']);
   }
diff --git a/lib/api/marianumcloud/files-sharing/fileSharingApi.dart b/lib/api/marianumcloud/files-sharing/fileSharingApi.dart
index 1a5f7b7..978b7a0 100644
--- a/lib/api/marianumcloud/files-sharing/fileSharingApi.dart
+++ b/lib/api/marianumcloud/files-sharing/fileSharingApi.dart
@@ -10,14 +10,14 @@ import 'fileSharingApiParams.dart';
 class FileSharingApi {
   Future<void> share(FileSharingApiParams query) async {
     Map<String, String> headers = {};
-    headers.putIfAbsent("Accept", () => "application/json");
-    headers.putIfAbsent("OCS-APIRequest", () => "true");
+    headers.putIfAbsent('Accept', () => 'application/json');
+    headers.putIfAbsent('OCS-APIRequest', () => 'true');
 
-    Uri endpoint = Uri.https("${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().domain}", "${EndpointData().nextcloud().path}/ocs/v2.php/apps/files_sharing/api/v1/shares", query.toJson().map((key, value) => MapEntry(key, value.toString())));
+    Uri endpoint = Uri.https('${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().domain}', '${EndpointData().nextcloud().path}/ocs/v2.php/apps/files_sharing/api/v1/shares', query.toJson().map((key, value) => MapEntry(key, value.toString())));
     Response response = await http.post(endpoint, headers: headers);
 
     if(response.statusCode != HttpStatus.ok) {
-      throw Exception("Api call failed with ${response.statusCode}: ${response.body}");
+      throw Exception('Api call failed with ${response.statusCode}: ${response.body}');
     }
   }
 }
\ No newline at end of file
diff --git a/lib/api/marianumcloud/talk/chat/getChat.dart b/lib/api/marianumcloud/talk/chat/getChat.dart
index 9829d00..2af2c54 100644
--- a/lib/api/marianumcloud/talk/chat/getChat.dart
+++ b/lib/api/marianumcloud/talk/chat/getChat.dart
@@ -11,7 +11,7 @@ class GetChat extends TalkApi<GetChatResponse> {
   String chatToken;
 
   GetChatParams params;
-  GetChat(this.chatToken, this.params) : super("v1/chat/$chatToken", null, getParameters: params.toJson());
+  GetChat(this.chatToken, this.params) : super('v1/chat/$chatToken', null, getParameters: params.toJson());
 
   @override
   assemble(String raw) {
diff --git a/lib/api/marianumcloud/talk/chat/getChatCache.dart b/lib/api/marianumcloud/talk/chat/getChatCache.dart
index 421726e..cb60032 100644
--- a/lib/api/marianumcloud/talk/chat/getChatCache.dart
+++ b/lib/api/marianumcloud/talk/chat/getChatCache.dart
@@ -9,7 +9,7 @@ class GetChatCache extends RequestCache<GetChatResponse> {
   String chatToken;
 
   GetChatCache({required onUpdate, required this.chatToken}) : super(RequestCache.cacheNothing, onUpdate) {
-    start("MarianumMobile", "nc-chat-$chatToken");
+    start('MarianumMobile', 'nc-chat-$chatToken');
   }
 
   @override
diff --git a/lib/api/marianumcloud/talk/chat/getChatResponse.dart b/lib/api/marianumcloud/talk/chat/getChatResponse.dart
index 9b4f55e..fbec9d0 100644
--- a/lib/api/marianumcloud/talk/chat/getChatResponse.dart
+++ b/lib/api/marianumcloud/talk/chat/getChatResponse.dart
@@ -61,21 +61,21 @@ class GetChatResponseObject {
 
   static GetChatResponseObject getDateDummy(int timestamp) {
     DateTime elementDate = DateTime.fromMillisecondsSinceEpoch(timestamp * 1000);
-    return getTextDummy(Jiffy.parseFromDateTime(elementDate).format(pattern: "dd.MM.yyyy"));
+    return getTextDummy(Jiffy.parseFromDateTime(elementDate).format(pattern: 'dd.MM.yyyy'));
   }
 
   static GetChatResponseObject getTextDummy(String text) {
     return GetChatResponseObject(
         0,
-        "",
+        '',
         GetRoomResponseObjectMessageActorType.user,
-        "",
-        "",
+        '',
+        '',
         0,
-        "",
+        '',
         GetRoomResponseObjectMessageType.system,
         false,
-        "",
+        '',
         text,
         null,
         null,
@@ -113,10 +113,10 @@ class RichObjectString {
 }
 
 enum RichObjectStringObjectType {
-  @JsonValue("user") user,
-  @JsonValue("group") group,
-  @JsonValue("file") file,
-  @JsonValue("guest") guest,
-  @JsonValue("highlight") highlight,
-  @JsonValue("talk-poll") talkPoll,
+  @JsonValue('user') user,
+  @JsonValue('group') group,
+  @JsonValue('file') file,
+  @JsonValue('guest') guest,
+  @JsonValue('highlight') highlight,
+  @JsonValue('talk-poll') talkPoll,
 }
\ No newline at end of file
diff --git a/lib/api/marianumcloud/talk/chat/richObjectStringProcessor.dart b/lib/api/marianumcloud/talk/chat/richObjectStringProcessor.dart
index a1fea08..9e7ea83 100644
--- a/lib/api/marianumcloud/talk/chat/richObjectStringProcessor.dart
+++ b/lib/api/marianumcloud/talk/chat/richObjectStringProcessor.dart
@@ -6,7 +6,7 @@ class RichObjectStringProcessor {
     if(data == null) return message;
 
     data.forEach((key, value) {
-      message = message.replaceAll(RegExp("{$key}"), value.name);
+      message = message.replaceAll(RegExp('{$key}'), value.name);
     });
 
     return message;
diff --git a/lib/api/marianumcloud/talk/createRoom/createRoom.dart b/lib/api/marianumcloud/talk/createRoom/createRoom.dart
index 590d395..9407932 100644
--- a/lib/api/marianumcloud/talk/createRoom/createRoom.dart
+++ b/lib/api/marianumcloud/talk/createRoom/createRoom.dart
@@ -7,7 +7,7 @@ import 'createRoomParams.dart';
 class CreateRoom extends TalkApi {
   CreateRoomParams params;
 
-  CreateRoom(this.params) : super("v4/room", params);
+  CreateRoom(this.params) : super('v4/room', params);
 
   @override
   assemble(String raw) {
diff --git a/lib/api/marianumcloud/talk/deleteMessage/deleteMessage.dart b/lib/api/marianumcloud/talk/deleteMessage/deleteMessage.dart
index 25e807e..c60d0ee 100644
--- a/lib/api/marianumcloud/talk/deleteMessage/deleteMessage.dart
+++ b/lib/api/marianumcloud/talk/deleteMessage/deleteMessage.dart
@@ -7,7 +7,7 @@ import '../talkApi.dart';
 class DeleteMessage extends TalkApi {
   String chatToken;
   int messageId;
-  DeleteMessage(this.chatToken, this.messageId) : super("v1/chat/$chatToken/$messageId", null);
+  DeleteMessage(this.chatToken, this.messageId) : super('v1/chat/$chatToken/$messageId', null);
 
   @override
   assemble(String raw) {
diff --git a/lib/api/marianumcloud/talk/deleteReactMessage/deleteReactMessage.dart b/lib/api/marianumcloud/talk/deleteReactMessage/deleteReactMessage.dart
index b546a7a..e24ff26 100644
--- a/lib/api/marianumcloud/talk/deleteReactMessage/deleteReactMessage.dart
+++ b/lib/api/marianumcloud/talk/deleteReactMessage/deleteReactMessage.dart
@@ -8,7 +8,7 @@ import 'deleteReactMessageParams.dart';
 class DeleteReactMessage extends TalkApi {
   String chatToken;
   int messageId;
-  DeleteReactMessage({required this.chatToken, required this.messageId, required DeleteReactMessageParams params}) : super("v1/reaction/$chatToken/$messageId", params);
+  DeleteReactMessage({required this.chatToken, required this.messageId, required DeleteReactMessageParams params}) : super('v1/reaction/$chatToken/$messageId', params);
 
   @override
   assemble(String raw) {
diff --git a/lib/api/marianumcloud/talk/getParticipants/getParticipants.dart b/lib/api/marianumcloud/talk/getParticipants/getParticipants.dart
index 2119d92..38a8266 100644
--- a/lib/api/marianumcloud/talk/getParticipants/getParticipants.dart
+++ b/lib/api/marianumcloud/talk/getParticipants/getParticipants.dart
@@ -7,7 +7,7 @@ import 'getParticipantsResponse.dart';
 
 class GetParticipants extends TalkApi<GetParticipantsResponse> {
   String token;
-  GetParticipants(this.token) : super("v4/room/$token/participants", null);
+  GetParticipants(this.token) : super('v4/room/$token/participants', null);
 
   @override
   GetParticipantsResponse assemble(String raw) {
diff --git a/lib/api/marianumcloud/talk/getParticipants/getParticipantsCache.dart b/lib/api/marianumcloud/talk/getParticipants/getParticipantsCache.dart
index 9ca1c70..e457059 100644
--- a/lib/api/marianumcloud/talk/getParticipants/getParticipantsCache.dart
+++ b/lib/api/marianumcloud/talk/getParticipants/getParticipantsCache.dart
@@ -8,7 +8,7 @@ class GetParticipantsCache extends RequestCache<GetParticipantsResponse> {
   String chatToken;
 
   GetParticipantsCache({required onUpdate, required this.chatToken}) : super(RequestCache.cacheNothing, onUpdate) {
-    start("MarianumMobile", "nc-chat-participants-$chatToken");
+    start('MarianumMobile', 'nc-chat-participants-$chatToken');
   }
 
   @override
diff --git a/lib/api/marianumcloud/talk/getReactions/getReactions.dart b/lib/api/marianumcloud/talk/getReactions/getReactions.dart
index 99fe988..e946751 100644
--- a/lib/api/marianumcloud/talk/getReactions/getReactions.dart
+++ b/lib/api/marianumcloud/talk/getReactions/getReactions.dart
@@ -10,7 +10,7 @@ import 'getReactionsResponse.dart';
 class GetReactions extends TalkApi<GetReactionsResponse> {
   String chatToken;
   int messageId;
-  GetReactions({required this.chatToken, required this.messageId}) : super("v1/reaction/$chatToken/$messageId", null);
+  GetReactions({required this.chatToken, required this.messageId}) : super('v1/reaction/$chatToken/$messageId', null);
 
   @override
   assemble(String raw) {
diff --git a/lib/api/marianumcloud/talk/getReactions/getReactionsResponse.dart b/lib/api/marianumcloud/talk/getReactions/getReactionsResponse.dart
index 419389a..5c0fd14 100644
--- a/lib/api/marianumcloud/talk/getReactions/getReactionsResponse.dart
+++ b/lib/api/marianumcloud/talk/getReactions/getReactionsResponse.dart
@@ -28,6 +28,6 @@ class GetReactionsResponseObject {
 }
 
 enum GetReactionsResponseObjectActorType {
-  @JsonValue("guests") guests,
-  @JsonValue("users") users,
+  @JsonValue('guests') guests,
+  @JsonValue('users') users,
 }
\ No newline at end of file
diff --git a/lib/api/marianumcloud/talk/leaveRoom/leaveRoom.dart b/lib/api/marianumcloud/talk/leaveRoom/leaveRoom.dart
index 849d6ed..4d13fe0 100644
--- a/lib/api/marianumcloud/talk/leaveRoom/leaveRoom.dart
+++ b/lib/api/marianumcloud/talk/leaveRoom/leaveRoom.dart
@@ -6,7 +6,7 @@ import '../talkApi.dart';
 class LeaveRoom extends TalkApi {
   String chatToken;
 
-  LeaveRoom(this.chatToken) : super("v4/room/$chatToken/participants/self", null);
+  LeaveRoom(this.chatToken) : super('v4/room/$chatToken/participants/self', null);
 
   @override
   assemble(String raw) {
diff --git a/lib/api/marianumcloud/talk/reactMessage/reactMessage.dart b/lib/api/marianumcloud/talk/reactMessage/reactMessage.dart
index 852e69e..4ce840f 100644
--- a/lib/api/marianumcloud/talk/reactMessage/reactMessage.dart
+++ b/lib/api/marianumcloud/talk/reactMessage/reactMessage.dart
@@ -8,7 +8,7 @@ import 'reactMessageParams.dart';
 class ReactMessage extends TalkApi {
   String chatToken;
   int messageId;
-  ReactMessage({required this.chatToken, required this.messageId, required ReactMessageParams params}) : super("v1/reaction/$chatToken/$messageId", params);
+  ReactMessage({required this.chatToken, required this.messageId, required ReactMessageParams params}) : super('v1/reaction/$chatToken/$messageId', params);
 
   @override
   assemble(String raw) {
diff --git a/lib/api/marianumcloud/talk/room/getRoom.dart b/lib/api/marianumcloud/talk/room/getRoom.dart
index 1de236f..5e0c092 100644
--- a/lib/api/marianumcloud/talk/room/getRoom.dart
+++ b/lib/api/marianumcloud/talk/room/getRoom.dart
@@ -9,7 +9,7 @@ import 'getRoomResponse.dart';
 
 class GetRoom extends TalkApi<GetRoomResponse> {
   GetRoomParams params;
-  GetRoom(this.params) : super("v4/room", null, getParameters: params.toJson());
+  GetRoom(this.params) : super('v4/room', null, getParameters: params.toJson());
 
 
 
diff --git a/lib/api/marianumcloud/talk/room/getRoomCache.dart b/lib/api/marianumcloud/talk/room/getRoomCache.dart
index 7f80abb..091bd65 100644
--- a/lib/api/marianumcloud/talk/room/getRoomCache.dart
+++ b/lib/api/marianumcloud/talk/room/getRoomCache.dart
@@ -8,7 +8,7 @@ import 'getRoomResponse.dart';
 
 class GetRoomCache extends RequestCache<GetRoomResponse> {
   GetRoomCache({onUpdate, renew}) : super(RequestCache.cacheMinute, onUpdate, renew: renew) {
-    start("MarianumMobile", "nc-rooms");
+    start('MarianumMobile', 'nc-rooms');
   }
 
   @override
diff --git a/lib/api/marianumcloud/talk/room/getRoomResponse.dart b/lib/api/marianumcloud/talk/room/getRoomResponse.dart
index 41cff26..3899887 100644
--- a/lib/api/marianumcloud/talk/room/getRoomResponse.dart
+++ b/lib/api/marianumcloud/talk/room/getRoomResponse.dart
@@ -19,10 +19,10 @@ class GetRoomResponse extends ApiResponse {
       final buffer = StringBuffer();
 
       if(favoritesToTop) {
-        buffer.write(chat.isFavorite ? "b" : "a");
+        buffer.write(chat.isFavorite ? 'b' : 'a');
       }
       if(unreadToTop) {
-        buffer.write(chat.unreadMessages > 0 ? "b" : "a");
+        buffer.write(chat.unreadMessages > 0 ? 'b' : 'a');
       }
 
       buffer.write(chat.lastActivity);
@@ -152,16 +152,16 @@ enum GetRoomResponseObjectParticipantNotificationLevel {
 // }
 
 enum GetRoomResponseObjectMessageActorType {
-  @JsonValue("deleted_users") deletedUsers,
-  @JsonValue("users") user,
-  @JsonValue("guests") guest,
-  @JsonValue("bots") bot,
-  @JsonValue("bridged") bridge,
+  @JsonValue('deleted_users') deletedUsers,
+  @JsonValue('users') user,
+  @JsonValue('guests') guest,
+  @JsonValue('bots') bot,
+  @JsonValue('bridged') bridge,
 }
 
 enum GetRoomResponseObjectMessageType {
-  @JsonValue("comment") comment,
-  @JsonValue("comment_deleted") deletedComment,
-  @JsonValue("system") system,
-  @JsonValue("command") command,
+  @JsonValue('comment') comment,
+  @JsonValue('comment_deleted') deletedComment,
+  @JsonValue('system') system,
+  @JsonValue('command') command,
 }
\ No newline at end of file
diff --git a/lib/api/marianumcloud/talk/sendMessage/sendMessage.dart b/lib/api/marianumcloud/talk/sendMessage/sendMessage.dart
index 8ea44e0..79f6845 100644
--- a/lib/api/marianumcloud/talk/sendMessage/sendMessage.dart
+++ b/lib/api/marianumcloud/talk/sendMessage/sendMessage.dart
@@ -7,7 +7,7 @@ import 'sendMessageParams.dart';
 
 class SendMessage extends TalkApi {
   String chatToken;
-  SendMessage(this.chatToken, SendMessageParams params) : super("v1/chat/$chatToken", params);
+  SendMessage(this.chatToken, SendMessageParams params) : super('v1/chat/$chatToken', params);
 
   @override
   assemble(String raw) {
diff --git a/lib/api/marianumcloud/talk/setFavorite/setFavorite.dart b/lib/api/marianumcloud/talk/setFavorite/setFavorite.dart
index 3f080f9..f5ab5df 100644
--- a/lib/api/marianumcloud/talk/setFavorite/setFavorite.dart
+++ b/lib/api/marianumcloud/talk/setFavorite/setFavorite.dart
@@ -8,7 +8,7 @@ class SetFavorite extends TalkApi {
   String chatToken;
   bool favoriteState;
 
-  SetFavorite(this.chatToken, this.favoriteState) : super("v4/room/$chatToken/favorite", null);
+  SetFavorite(this.chatToken, this.favoriteState) : super('v4/room/$chatToken/favorite', null);
 
   @override
   assemble(String raw) {
diff --git a/lib/api/marianumcloud/talk/setReadMarker/setReadMarker.dart b/lib/api/marianumcloud/talk/setReadMarker/setReadMarker.dart
index f052b59..fbdd5a4 100644
--- a/lib/api/marianumcloud/talk/setReadMarker/setReadMarker.dart
+++ b/lib/api/marianumcloud/talk/setReadMarker/setReadMarker.dart
@@ -10,7 +10,7 @@ class SetReadMarker extends TalkApi {
   bool readState;
   SetReadMarkerParams? setReadMarkerParams;
 
-  SetReadMarker(this.chatToken, this.readState, {this.setReadMarkerParams}) : super("v1/chat/$chatToken/read", null, getParameters: setReadMarkerParams?.toJson()) {
+  SetReadMarker(this.chatToken, this.readState, {this.setReadMarkerParams}) : super('v1/chat/$chatToken/read', null, getParameters: setReadMarkerParams?.toJson()) {
     if(readState) assert(setReadMarkerParams?.lastReadMessage != null);
   }
 
diff --git a/lib/api/marianumcloud/talk/talkApi.dart b/lib/api/marianumcloud/talk/talkApi.dart
index 12ca1df..7da0e91 100644
--- a/lib/api/marianumcloud/talk/talkApi.dart
+++ b/lib/api/marianumcloud/talk/talkApi.dart
@@ -34,21 +34,21 @@ abstract class TalkApi<T extends ApiResponse?> extends ApiRequest {
       getParameters?.update(key, (value) => value.toString());
     });
 
-    Uri endpoint = Uri.https("${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().domain}", "${EndpointData().nextcloud().path}/ocs/v2.php/apps/spreed/api/$path", getParameters);
+    Uri endpoint = Uri.https('${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().domain}', '${EndpointData().nextcloud().path}/ocs/v2.php/apps/spreed/api/$path', getParameters);
 
     headers ??= {};
-    headers?.putIfAbsent("Accept", () => "application/json");
-    headers?.putIfAbsent("OCS-APIRequest", () => "true");
+    headers?.putIfAbsent('Accept', () => 'application/json');
+    headers?.putIfAbsent('OCS-APIRequest', () => 'true');
 
     http.Response? data;
 
     try {
       data = await request(endpoint, body, headers);
-      if(data == null) throw Exception("No response Data");
+      if(data == null) throw Exception('No response Data');
       if(data.statusCode >= 400 || data.statusCode < 200) throw Exception("Response status code '${data.statusCode}' might indicate an error");
     } catch(e) {
       log(e.toString());
-      throw ApiError("Request $endpoint could not be dispatched: ${e.toString()}");
+      throw ApiError('Request $endpoint could not be dispatched: ${e.toString()}');
     }
     //dynamic jsonData = jsonDecode(data.body);
 
@@ -59,10 +59,10 @@ abstract class TalkApi<T extends ApiResponse?> extends ApiRequest {
       return assembled;
     } catch (e) {
       // TODO report error
-      log("Error assembling Talk API ${T.toString()} message: ${e.toString()} response on ${endpoint.path} with request body: $body and request headers: ${headers.toString()}");
+      log('Error assembling Talk API ${T.toString()} message: ${e.toString()} response on ${endpoint.path} with request body: $body and request headers: ${headers.toString()}');
     }
 
-    throw Exception("Error assembling Talk API response");
+    throw Exception('Error assembling Talk API response');
   }
 
 }
\ No newline at end of file
diff --git a/lib/api/marianumcloud/talk/talkError.dart b/lib/api/marianumcloud/talk/talkError.dart
index f4ac002..8f2884e 100644
--- a/lib/api/marianumcloud/talk/talkError.dart
+++ b/lib/api/marianumcloud/talk/talkError.dart
@@ -7,6 +7,6 @@ class TalkError {
 
   @override
   String toString() {
-    return "Talk - $status - ($code): $message";
+    return 'Talk - $status - ($code): $message';
   }
 }
\ No newline at end of file
diff --git a/lib/api/marianumcloud/webdav/queries/listFiles/cacheableFile.dart b/lib/api/marianumcloud/webdav/queries/listFiles/cacheableFile.dart
index 7c64a59..90df17c 100644
--- a/lib/api/marianumcloud/webdav/queries/listFiles/cacheableFile.dart
+++ b/lib/api/marianumcloud/webdav/queries/listFiles/cacheableFile.dart
@@ -24,7 +24,7 @@ class CacheableFile {
   CacheableFile.fromDavFile(WebDavFile file) {
     path = file.path.path;
     isDirectory = file.isDirectory;
-    name = file.isDirectory ? file.name : file.path.path.split("/").last;
+    name = file.isDirectory ? file.name : file.path.path.split('/').last;
     mimeType = file.mimeType;
     size = file.size;
     eTag = file.etag;
diff --git a/lib/api/marianumcloud/webdav/queries/listFiles/listFiles.dart b/lib/api/marianumcloud/webdav/queries/listFiles/listFiles.dart
index 503d1e3..96fd558 100644
--- a/lib/api/marianumcloud/webdav/queries/listFiles/listFiles.dart
+++ b/lib/api/marianumcloud/webdav/queries/listFiles/listFiles.dart
@@ -14,7 +14,7 @@ class ListFiles extends WebdavApi<ListFilesParams> {
   @override
   Future<ListFilesResponse> run() async {
     List<WebDavFile> davFiles = (await (await WebdavApi.webdav).propfind(PathUri.parse(params.path))).toWebDavFiles();
-    Set<CacheableFile> files = davFiles.map((e) => CacheableFile.fromDavFile(e)).toSet();
+    Set<CacheableFile> files = davFiles.map(CacheableFile.fromDavFile).toSet();
 
     // webdav handles subdirectories wrong, this is a fix
     // currently this fix is not needed anymore
@@ -26,7 +26,7 @@ class ListFiles extends WebdavApi<ListFilesParams> {
     // }
 
     // somehow the current working folder is also listed, it is filtered here.
-    files.removeWhere((element) => element.path == "/${params.path}/" || element.path == "/");
+    files.removeWhere((element) => element.path == '/${params.path}/' || element.path == '/');
 
     return ListFilesResponse(files);
   }
diff --git a/lib/api/marianumcloud/webdav/queries/listFiles/listFilesCache.dart b/lib/api/marianumcloud/webdav/queries/listFiles/listFilesCache.dart
index b076392..ef1aefa 100644
--- a/lib/api/marianumcloud/webdav/queries/listFiles/listFilesCache.dart
+++ b/lib/api/marianumcloud/webdav/queries/listFiles/listFilesCache.dart
@@ -10,9 +10,9 @@ class ListFilesCache extends RequestCache<ListFilesResponse> {
   String path;
 
   ListFilesCache({required onUpdate, required this.path}) : super(RequestCache.cacheNothing, onUpdate) {
-    var bytes = utf8.encode("MarianumMobile-$path");
+    var bytes = utf8.encode('MarianumMobile-$path');
     String cacheName = md5.convert(bytes).toString();
-    start("MarianumMobile", "wd-folder-$cacheName");
+    start('MarianumMobile', 'wd-folder-$cacheName');
   }
 
   @override
diff --git a/lib/api/marianumcloud/webdav/queries/listFiles/listFilesResponse.dart b/lib/api/marianumcloud/webdav/queries/listFiles/listFilesResponse.dart
index 2c0ad80..cc8b5d2 100644
--- a/lib/api/marianumcloud/webdav/queries/listFiles/listFilesResponse.dart
+++ b/lib/api/marianumcloud/webdav/queries/listFiles/listFilesResponse.dart
@@ -35,7 +35,7 @@ class ListFilesResponse extends ApiResponse {
 
             switch(sortOption) {
                 case SortOption.date:
-                    buffer.write(Jiffy.parseFromMillisecondsSinceEpoch(file.modifiedAt?.millisecondsSinceEpoch ?? 0).format(pattern: "yyyyMMddhhmmss"));
+                    buffer.write(Jiffy.parseFromMillisecondsSinceEpoch(file.modifiedAt?.millisecondsSinceEpoch ?? 0).format(pattern: 'yyyyMMddhhmmss'));
                     break;
 
                 case SortOption.name:
diff --git a/lib/api/marianumcloud/webdav/webdavApi.dart b/lib/api/marianumcloud/webdav/webdavApi.dart
index 9c9570d..27ad784 100644
--- a/lib/api/marianumcloud/webdav/webdavApi.dart
+++ b/lib/api/marianumcloud/webdav/webdavApi.dart
@@ -18,10 +18,10 @@ abstract class WebdavApi<T> extends ApiRequest {
   static Future<String> webdavConnectString = buildWebdavConnectString();
 
   static Future<WebDavClient> establishWebdavConnection() async {
-    return NextcloudClient(Uri.parse("https://${EndpointData().nextcloud().full()}"), password: AccountData().getPassword(), loginName: AccountData().getUsername()).webdav;
+    return NextcloudClient(Uri.parse('https://${EndpointData().nextcloud().full()}'), password: AccountData().getPassword(), loginName: AccountData().getUsername()).webdav;
   }
 
   static Future<String> buildWebdavConnectString() async {
-    return "https://${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().full()}/remote.php/dav/files/${AccountData().getUsername()}/";
+    return 'https://${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().full()}/remote.php/dav/files/${AccountData().getUsername()}/';
   }
 }
\ No newline at end of file
diff --git a/lib/api/mhsl/breaker/getBreakers/getBreakers.dart b/lib/api/mhsl/breaker/getBreakers/getBreakers.dart
index 1067d54..6395df5 100644
--- a/lib/api/mhsl/breaker/getBreakers/getBreakers.dart
+++ b/lib/api/mhsl/breaker/getBreakers/getBreakers.dart
@@ -6,7 +6,7 @@ import '../../mhslApi.dart';
 import 'getBreakersResponse.dart';
 
 class GetBreakers extends MhslApi<GetBreakersResponse> {
-  GetBreakers() : super("breaker/");
+  GetBreakers() : super('breaker/');
 
   @override
   GetBreakersResponse assemble(String raw) {
diff --git a/lib/api/mhsl/breaker/getBreakers/getBreakersCache.dart b/lib/api/mhsl/breaker/getBreakers/getBreakersCache.dart
index bf2f859..3b98444 100644
--- a/lib/api/mhsl/breaker/getBreakers/getBreakersCache.dart
+++ b/lib/api/mhsl/breaker/getBreakers/getBreakersCache.dart
@@ -6,7 +6,7 @@ import 'getBreakersResponse.dart';
 
 class GetBreakersCache extends RequestCache<GetBreakersResponse> {
   GetBreakersCache({onUpdate, renew}) : super(RequestCache.cacheMinute, onUpdate, renew: renew) {
-    start("MarianumMobile", "breakers");
+    start('MarianumMobile', 'breakers');
   }
 
   @override
diff --git a/lib/api/mhsl/breaker/getBreakers/getBreakersResponse.dart b/lib/api/mhsl/breaker/getBreakers/getBreakersResponse.dart
index 7de4d4a..0b7e6c4 100644
--- a/lib/api/mhsl/breaker/getBreakers/getBreakersResponse.dart
+++ b/lib/api/mhsl/breaker/getBreakers/getBreakersResponse.dart
@@ -28,9 +28,9 @@ class GetBreakersReponseObject {
 }
 
 enum BreakerArea {
-  @JsonValue("GLOBAL") global,
-  @JsonValue("TIMETABLE") timetable,
-  @JsonValue("TALK") talk,
-  @JsonValue("FILES") files,
-  @JsonValue("MORE") more,
+  @JsonValue('GLOBAL') global,
+  @JsonValue('TIMETABLE') timetable,
+  @JsonValue('TALK') talk,
+  @JsonValue('FILES') files,
+  @JsonValue('MORE') more,
 }
\ No newline at end of file
diff --git a/lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEvent.dart b/lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEvent.dart
index 2c9d3bf..50b10b7 100644
--- a/lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEvent.dart
+++ b/lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEvent.dart
@@ -9,11 +9,11 @@ import 'getCustomTimetableEventResponse.dart';
 
 class GetCustomTimetableEvent extends MhslApi<GetCustomTimetableEventResponse> {
   GetCustomTimetableEventParams params;
-  GetCustomTimetableEvent(this.params) : super("server/timetable/customEvents?user=${params.user}");
+  GetCustomTimetableEvent(this.params) : super('server/timetable/customEvents?user=${params.user}');
 
   @override
   GetCustomTimetableEventResponse assemble(String raw) {
-    return GetCustomTimetableEventResponse.fromJson({"events": jsonDecode(raw)});
+    return GetCustomTimetableEventResponse.fromJson({'events': jsonDecode(raw)});
   }
 
   @override
diff --git a/lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEventCache.dart b/lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEventCache.dart
index fceaba6..8c8762f 100644
--- a/lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEventCache.dart
+++ b/lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEventCache.dart
@@ -9,7 +9,7 @@ class GetCustomTimetableEventCache extends RequestCache<GetCustomTimetableEventR
   GetCustomTimetableEventParams params;
 
   GetCustomTimetableEventCache(this.params, {onUpdate, renew}) : super(RequestCache.cacheMinute, onUpdate, renew: renew) {
-    start("MarianumMobile", "customTimetableEvents");
+    start('MarianumMobile', 'customTimetableEvents');
   }
 
   @override
diff --git a/lib/api/mhsl/message/getMessages/getMessages.dart b/lib/api/mhsl/message/getMessages/getMessages.dart
index 62704df..d62be9e 100644
--- a/lib/api/mhsl/message/getMessages/getMessages.dart
+++ b/lib/api/mhsl/message/getMessages/getMessages.dart
@@ -6,7 +6,7 @@ import '../../mhslApi.dart';
 import 'getMessagesResponse.dart';
 
 class GetMessages extends MhslApi<GetMessagesResponse> {
-  GetMessages() : super("message/messages.json");
+  GetMessages() : super('message/messages.json');
 
 
   @override
diff --git a/lib/api/mhsl/message/getMessages/getMessagesCache.dart b/lib/api/mhsl/message/getMessages/getMessagesCache.dart
index 081f737..96d736a 100644
--- a/lib/api/mhsl/message/getMessages/getMessagesCache.dart
+++ b/lib/api/mhsl/message/getMessages/getMessagesCache.dart
@@ -6,7 +6,7 @@ import 'getMessagesResponse.dart';
 
 class GetMessagesCache extends RequestCache<GetMessagesResponse> {
   GetMessagesCache({onUpdate, renew}) : super(RequestCache.cacheMinute, onUpdate, renew: renew) {
-    start("MarianumMobile", "message");
+    start('MarianumMobile', 'message');
   }
 
   @override
diff --git a/lib/api/mhsl/mhslApi.dart b/lib/api/mhsl/mhslApi.dart
index 4bb7448..df76c09 100644
--- a/lib/api/mhsl/mhslApi.dart
+++ b/lib/api/mhsl/mhslApi.dart
@@ -15,21 +15,21 @@ abstract class MhslApi<T> extends ApiRequest {
   T assemble(String raw);
 
   Future<T> run() async {
-    Uri endpoint = Uri.parse("https://mhsl.eu/marianum/marianummobile/$subpath");
+    Uri endpoint = Uri.parse('https://mhsl.eu/marianum/marianummobile/$subpath');
 
     http.Response? data = await request(endpoint);
     if(data == null) {
-      throw ApiError("Request could not be dispatched!");
+      throw ApiError('Request could not be dispatched!');
     }
 
     if(data.statusCode > 299) {
-      throw ApiError("Non 200 Status code from mhsl services: $subpath: ${data.statusCode}");
+      throw ApiError('Non 200 Status code from mhsl services: $subpath: ${data.statusCode}');
     }
 
     return assemble(utf8.decode(data.bodyBytes));
   }
 
-  static String dateTimeToJson(DateTime time) => Jiffy.parseFromDateTime(time).format(pattern: "yyyy-MM-dd HH:mm:ss");
+  static String dateTimeToJson(DateTime time) => Jiffy.parseFromDateTime(time).format(pattern: 'yyyy-MM-dd HH:mm:ss');
   static DateTime dateTimeFromJson(String time) => DateTime.parse(time);
 
 }
\ No newline at end of file
diff --git a/lib/api/mhsl/notify/register/notifyRegister.dart b/lib/api/mhsl/notify/register/notifyRegister.dart
index c614520..178b0c9 100644
--- a/lib/api/mhsl/notify/register/notifyRegister.dart
+++ b/lib/api/mhsl/notify/register/notifyRegister.dart
@@ -9,7 +9,7 @@ import 'notifyRegisterParams.dart';
 
 class NotifyRegister extends MhslApi<void> {
   NotifyRegisterParams params;
-  NotifyRegister(this.params) : super("notify/register/");
+  NotifyRegister(this.params) : super('notify/register/');
 
 
   @override
diff --git a/lib/api/mhsl/server/userIndex/update/updateUserindex.dart b/lib/api/mhsl/server/userIndex/update/updateUserindex.dart
index dc310cf..119906d 100644
--- a/lib/api/mhsl/server/userIndex/update/updateUserindex.dart
+++ b/lib/api/mhsl/server/userIndex/update/updateUserindex.dart
@@ -12,7 +12,7 @@ import 'updateUserIndexParams.dart';
 
 class UpdateUserIndex extends MhslApi<void> {
   UpdateUserIndexParams params;
-  UpdateUserIndex(this.params) : super("server/userIndex/update");
+  UpdateUserIndex(this.params) : super('server/userIndex/update');
 
   @override
   void assemble(String raw) {}
@@ -20,7 +20,7 @@ class UpdateUserIndex extends MhslApi<void> {
   @override
   Future<http.Response> request(Uri uri) {
     String data = jsonEncode(params.toJson());
-    log("Updating userindex:\n $data");
+    log('Updating userindex:\n $data');
     return http.post(uri, body: data);
   }
 
diff --git a/lib/api/requestCache.dart b/lib/api/requestCache.dart
index 99d1309..a9405a5 100644
--- a/lib/api/requestCache.dart
+++ b/lib/api/requestCache.dart
@@ -36,8 +36,8 @@ abstract class RequestCache<T extends ApiResponse?> {
       onUpdate(newValue as T);
 
       Localstore.instance.collection(file).doc(document).set({
-        "json": jsonEncode(newValue),
-        "lastupdate": DateTime.now().millisecondsSinceEpoch
+        'json': jsonEncode(newValue),
+        'lastupdate': DateTime.now().millisecondsSinceEpoch
       });
     } catch(e) {
       log("Error while fetching/ parsing. Raw server response: ${newValue?.rawResponse.body ?? "no response"}");
diff --git a/lib/api/webuntis/queries/authenticate/authenticate.dart b/lib/api/webuntis/queries/authenticate/authenticate.dart
index 87cc5c2..f237aa2 100644
--- a/lib/api/webuntis/queries/authenticate/authenticate.dart
+++ b/lib/api/webuntis/queries/authenticate/authenticate.dart
@@ -9,7 +9,7 @@ import 'authenticateResponse.dart';
 class Authenticate extends WebuntisApi {
   AuthenticateParams param;
 
-  Authenticate(this.param) : super("authenticate", param, authenticatedResponse: false);
+  Authenticate(this.param) : super('authenticate', param, authenticatedResponse: false);
 
   @override
   Future<AuthenticateResponse> run() async {
diff --git a/lib/api/webuntis/queries/getHolidays/getHolidays.dart b/lib/api/webuntis/queries/getHolidays/getHolidays.dart
index 3c280f8..699657d 100644
--- a/lib/api/webuntis/queries/getHolidays/getHolidays.dart
+++ b/lib/api/webuntis/queries/getHolidays/getHolidays.dart
@@ -4,7 +4,7 @@ import '../../webuntisApi.dart';
 import 'getHolidaysResponse.dart';
 
 class GetHolidays extends WebuntisApi {
-  GetHolidays() : super("getHolidays", null);
+  GetHolidays() : super('getHolidays', null);
 
   @override
   Future<GetHolidaysResponse> run() async {
diff --git a/lib/api/webuntis/queries/getHolidays/getHolidaysCache.dart b/lib/api/webuntis/queries/getHolidays/getHolidaysCache.dart
index e205749..9f7924c 100644
--- a/lib/api/webuntis/queries/getHolidays/getHolidaysCache.dart
+++ b/lib/api/webuntis/queries/getHolidays/getHolidaysCache.dart
@@ -6,7 +6,7 @@ import 'getHolidaysResponse.dart';
 
 class GetHolidaysCache extends RequestCache<GetHolidaysResponse> {
   GetHolidaysCache({onUpdate}) : super(RequestCache.cacheDay, onUpdate) {
-    start("MarianumMobile", "wu-holidays");
+    start('MarianumMobile', 'wu-holidays');
   }
 
   @override
diff --git a/lib/api/webuntis/queries/getRooms/getRooms.dart b/lib/api/webuntis/queries/getRooms/getRooms.dart
index 49a8859..d28f040 100644
--- a/lib/api/webuntis/queries/getRooms/getRooms.dart
+++ b/lib/api/webuntis/queries/getRooms/getRooms.dart
@@ -5,7 +5,7 @@ import '../../webuntisApi.dart';
 import 'getRoomsResponse.dart';
 
 class GetRooms extends WebuntisApi {
-  GetRooms() : super("getRooms", null);
+  GetRooms() : super('getRooms', null);
 
   @override
   Future<GetRoomsResponse> run() async {
@@ -14,10 +14,10 @@ class GetRooms extends WebuntisApi {
       return finalize(GetRoomsResponse.fromJson(jsonDecode(rawAnswer)));
     } catch(e, trace) {
       log(trace.toString());
-      log("Failed to parse getRoom data with server response: $rawAnswer");
+      log('Failed to parse getRoom data with server response: $rawAnswer');
     }
 
-    throw Exception("Failed to parse getRoom server response: $rawAnswer");
+    throw Exception('Failed to parse getRoom server response: $rawAnswer');
   }
 
 }
\ No newline at end of file
diff --git a/lib/api/webuntis/queries/getRooms/getRoomsCache.dart b/lib/api/webuntis/queries/getRooms/getRoomsCache.dart
index 4e71266..777de09 100644
--- a/lib/api/webuntis/queries/getRooms/getRoomsCache.dart
+++ b/lib/api/webuntis/queries/getRooms/getRoomsCache.dart
@@ -6,7 +6,7 @@ import 'getRoomsResponse.dart';
 
 class GetRoomsCache extends RequestCache<GetRoomsResponse> {
   GetRoomsCache({onUpdate}) : super(RequestCache.cacheHour, onUpdate) {
-    start("MarianumMobile", "wu-rooms");
+    start('MarianumMobile', 'wu-rooms');
   }
 
   @override
diff --git a/lib/api/webuntis/queries/getSubjects/getSubjects.dart b/lib/api/webuntis/queries/getSubjects/getSubjects.dart
index eb965b5..27ff750 100644
--- a/lib/api/webuntis/queries/getSubjects/getSubjects.dart
+++ b/lib/api/webuntis/queries/getSubjects/getSubjects.dart
@@ -4,7 +4,7 @@ import '../../webuntisApi.dart';
 import 'getSubjectsResponse.dart';
 
 class GetSubjects extends WebuntisApi {
-  GetSubjects() : super("getSubjects", null);
+  GetSubjects() : super('getSubjects', null);
 
   @override
   Future<GetSubjectsResponse> run() async {
diff --git a/lib/api/webuntis/queries/getSubjects/getSubjectsCache.dart b/lib/api/webuntis/queries/getSubjects/getSubjectsCache.dart
index b07d1fd..aea6387 100644
--- a/lib/api/webuntis/queries/getSubjects/getSubjectsCache.dart
+++ b/lib/api/webuntis/queries/getSubjects/getSubjectsCache.dart
@@ -6,7 +6,7 @@ import 'getSubjectsResponse.dart';
 
 class GetSubjectsCache extends RequestCache<GetSubjectsResponse> {
   GetSubjectsCache({onUpdate}) : super(RequestCache.cacheHour, onUpdate) {
-    start("MarianumMobile", "wu-subjects");
+    start('MarianumMobile', 'wu-subjects');
   }
 
   @override
diff --git a/lib/api/webuntis/queries/getTimetable/getTimetable.dart b/lib/api/webuntis/queries/getTimetable/getTimetable.dart
index 37eab80..369f012 100644
--- a/lib/api/webuntis/queries/getTimetable/getTimetable.dart
+++ b/lib/api/webuntis/queries/getTimetable/getTimetable.dart
@@ -7,7 +7,7 @@ import 'getTimetableResponse.dart';
 class GetTimetable extends WebuntisApi {
   GetTimetableParams params;
 
-  GetTimetable(this.params) : super("getTimetable", params);
+  GetTimetable(this.params) : super('getTimetable', params);
 
   @override
   Future<GetTimetableResponse> run() async {
diff --git a/lib/api/webuntis/queries/getTimetable/getTimetableCache.dart b/lib/api/webuntis/queries/getTimetable/getTimetableCache.dart
index 1d756d1..9e4adb8 100644
--- a/lib/api/webuntis/queries/getTimetable/getTimetableCache.dart
+++ b/lib/api/webuntis/queries/getTimetable/getTimetableCache.dart
@@ -11,7 +11,7 @@ class GetTimetableCache extends RequestCache<GetTimetableResponse> {
   int enddate;
 
   GetTimetableCache({required onUpdate, onError, required this.startdate, required this.enddate}) : super(RequestCache.cacheMinute, onUpdate, onError: onError) {
-    start("MarianumMobile", "wu-timetable-$startdate-$enddate");
+    start('MarianumMobile', 'wu-timetable-$startdate-$enddate');
   }
 
   @override
diff --git a/lib/api/webuntis/queries/getTimetable/getTimetableParams.dart b/lib/api/webuntis/queries/getTimetable/getTimetableParams.dart
index 25dc3ed..1dec8c7 100644
--- a/lib/api/webuntis/queries/getTimetable/getTimetableParams.dart
+++ b/lib/api/webuntis/queries/getTimetable/getTimetableParams.dart
@@ -67,10 +67,10 @@ class GetTimetableParamsOptions {
 }
 
 enum GetTimetableParamsOptionsFields {
-  @JsonValue("id") id,
-  @JsonValue("name") name,
-  @JsonValue("longname") longname,
-  @JsonValue("externalkey") externalkey;
+  @JsonValue('id') id,
+  @JsonValue('name') name,
+  @JsonValue('longname') longname,
+  @JsonValue('externalkey') externalkey;
 
   static List<GetTimetableParamsOptionsFields> all = [id, name, longname, externalkey];
 }
@@ -88,7 +88,7 @@ class GetTimetableParamsOptionsElement {
 }
 
 enum GetTimetableParamsOptionsElementKeyType {
-  @JsonValue("id") id,
-  @JsonValue("name") name,
-  @JsonValue("externalkey") externalkey
+  @JsonValue('id') id,
+  @JsonValue('name') name,
+  @JsonValue('externalkey') externalkey
 }
\ No newline at end of file
diff --git a/lib/api/webuntis/webuntisApi.dart b/lib/api/webuntis/webuntisApi.dart
index 45db72f..90a7cf4 100644
--- a/lib/api/webuntis/webuntisApi.dart
+++ b/lib/api/webuntis/webuntisApi.dart
@@ -9,7 +9,7 @@ import 'queries/authenticate/authenticate.dart';
 import 'webuntisError.dart';
 
 abstract class WebuntisApi extends ApiRequest {
-  Uri endpoint = Uri.parse("https://${EndpointData().webuntis().full()}/WebUntis/jsonrpc.do?school=marianum-fulda");
+  Uri endpoint = Uri.parse('https://${EndpointData().webuntis().full()}/WebUntis/jsonrpc.do?school=marianum-fulda');
   String method;
   ApiParams? genericParam;
   http.Response? response;
@@ -22,11 +22,11 @@ abstract class WebuntisApi extends ApiRequest {
   Future<String> query(WebuntisApi untis) async {
     String query = '{"id":"ID","method":"$method","params":${untis._body()},"jsonrpc":"2.0"}';
 
-    String sessionId = "0";
+    String sessionId = '0';
     if(authenticatedResponse) {
       sessionId = (await Authenticate.getSession()).sessionId;
     }
-    http.Response data = await post(query, {"Cookie": "JSESSIONID=$sessionId"});
+    http.Response data = await post(query, {'Cookie': 'JSESSIONID=$sessionId'});
     response = data;
 
     dynamic jsonData = jsonDecode(data.body);
@@ -49,7 +49,7 @@ abstract class WebuntisApi extends ApiRequest {
   Future<ApiResponse> run();
 
   String _body() {
-    return genericParam == null ? "{}" : jsonEncode(genericParam);
+    return genericParam == null ? '{}' : jsonEncode(genericParam);
   }
 
   Future<http.Response> post(String data, Map<String, String>? headers) async {
@@ -57,7 +57,7 @@ abstract class WebuntisApi extends ApiRequest {
         .post(endpoint, body: data, headers: headers)
         .timeout(
         const Duration(seconds: 10),
-        onTimeout: () => throw WebuntisError("Timeout", 1)
+        onTimeout: () => throw WebuntisError('Timeout', 1)
     );
   }
 }
\ No newline at end of file
diff --git a/lib/api/webuntis/webuntisError.dart b/lib/api/webuntis/webuntisError.dart
index 0f03bff..b79b727 100644
--- a/lib/api/webuntis/webuntisError.dart
+++ b/lib/api/webuntis/webuntisError.dart
@@ -6,6 +6,6 @@ class WebuntisError implements Exception {
 
   @override
   String toString() {
-    return "WebUntis ($code): $message";
+    return 'WebUntis ($code): $message';
   }
 }
\ No newline at end of file
diff --git a/lib/app.dart b/lib/app.dart
index 48e801a..07d46cb 100644
--- a/lib/app.dart
+++ b/lib/app.dart
@@ -39,14 +39,14 @@ class _AppState extends State<App> with WidgetsBindingObserver {
 
   @override
   void didChangeAppLifecycleState(AppLifecycleState state) {
-    log("AppLifecycle: ${state.toString()}");
+    log('AppLifecycle: ${state.toString()}');
 
     if(state == AppLifecycleState.resumed) {
       EasyThrottle.throttle(
-        "appLifecycleState",
+        'appLifecycleState',
         const Duration(seconds: 10),
         () {
-          log("Refreshing due to LifecycleChange");
+          log('Refreshing due to LifecycleChange');
           NotificationTasks.updateProviders(context);
           Provider.of<TimetableProps>(context, listen: false).run();
         }
@@ -106,7 +106,7 @@ class _AppState extends State<App> with WidgetsBindingObserver {
             activeForegroundColor: Theme.of(context).primaryColor,
             inactiveForegroundColor: Theme.of(context).colorScheme.secondary,
             icon: const Icon(Icons.calendar_month),
-            title: "Vertretung"
+            title: 'Vertretung'
           ),
         ),
         PersistentTabConfig(
@@ -127,12 +127,12 @@ class _AppState extends State<App> with WidgetsBindingObserver {
                     badgeColor: Theme.of(context).primaryColor,
                     elevation: 1,
                   ),
-                  badgeContent: Text("$messages", style: const TextStyle(color: Colors.white, fontSize: 10, fontWeight: FontWeight.bold)),
+                  badgeContent: Text('$messages', style: const TextStyle(color: Colors.white, fontSize: 10, fontWeight: FontWeight.bold)),
                   child: const Icon(Icons.chat),
                 );
               },
             ),
-            title: "Talk",
+            title: 'Talk',
           ),
         ),
         PersistentTabConfig(
@@ -141,7 +141,7 @@ class _AppState extends State<App> with WidgetsBindingObserver {
               activeForegroundColor: Theme.of(context).primaryColor,
               inactiveForegroundColor: Theme.of(context).colorScheme.secondary,
               icon: const Icon(Icons.folder),
-              title: "Dateien"
+              title: 'Dateien'
           ),
         ),
         PersistentTabConfig(
@@ -150,7 +150,7 @@ class _AppState extends State<App> with WidgetsBindingObserver {
               activeForegroundColor: Theme.of(context).primaryColor,
               inactiveForegroundColor: Theme.of(context).colorScheme.secondary,
               icon: const Icon(Icons.apps),
-              title: "Mehr"
+              title: 'Mehr'
           ),
         ),
       ],
diff --git a/lib/main.dart b/lib/main.dart
index 225f627..7e407ba 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -39,7 +39,7 @@ Future<void> main() async {
     await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
     log("Firebase token: ${await FirebaseMessaging.instance.getToken() ?? "Error: no Firebase token!"}");
   } catch (e) {
-    log("Error initializing Firebase app!");
+    log('Error initializing Firebase app!');
   }
 
   ByteData data = await PlatformAssetBundle().load('assets/ca/lets-encrypt-r3.pem');
@@ -89,7 +89,7 @@ class _MainState extends State<Main> {
 
   @override
   void initState() {
-    Jiffy.setLocale("de");
+    Jiffy.setLocale('de');
 
     AccountData().waitForPopulation().then((value) {
       Provider.of<AccountModel>(context, listen: false)
@@ -139,7 +139,7 @@ class _MainState extends State<Main> {
                       switch(accountModel.state) {
                         case AccountModelState.loggedIn: return const App();
                         case AccountModelState.loggedOut: return const Login();
-                        case AccountModelState.undefined: return const PlaceholderView(icon: Icons.timer, text: "Daten werden geladen");
+                        case AccountModelState.undefined: return const PlaceholderView(icon: Icons.timer, text: 'Daten werden geladen');
                       }
                     },
                   )
diff --git a/lib/model/accountData.dart b/lib/model/accountData.dart
index 729487e..7648511 100644
--- a/lib/model/accountData.dart
+++ b/lib/model/accountData.dart
@@ -10,8 +10,8 @@ import 'package:shared_preferences/shared_preferences.dart';
 import 'accountModel.dart';
 
 class AccountData {
-  static const _usernameField = "username";
-  static const _passwordField = "password";
+  static const _usernameField = 'username';
+  static const _passwordField = 'password';
   
   static final AccountData _instance = AccountData._construct();
   final Future<SharedPreferences> _storage = SharedPreferences.getInstance();
@@ -29,21 +29,21 @@ class AccountData {
   String? _password;
 
   String getUsername() {
-    if(_username == null) throw Exception("Username not initialized");
+    if(_username == null) throw Exception('Username not initialized');
     return _username!;
   }
 
   String getPassword() {
-    if(_password == null) throw Exception("Password not initialized");
+    if(_password == null) throw Exception('Password not initialized');
     return _password!;
   }
 
   String getUserSecret() {
-    return sha512.convert(utf8.encode("${AccountData().getUsername()}:${AccountData().getPassword()}")).toString();
+    return sha512.convert(utf8.encode('${AccountData().getUsername()}:${AccountData().getPassword()}')).toString();
   }
 
   Future<String> getDeviceId() async {
-    return sha512.convert(utf8.encode("${getUserSecret()}@${await FirebaseMessaging.instance.getToken()}")).toString();
+    return sha512.convert(utf8.encode('${getUserSecret()}@${await FirebaseMessaging.instance.getToken()}')).toString();
   }
 
   Future<void> setData(String username, String password) async {
@@ -84,7 +84,7 @@ class AccountData {
   }
 
   String buildHttpAuthString() {
-    if(!isPopulated()) throw Exception("AccountData (e.g. username or password) is not initialized!");
-    return "$_username:$_password";
+    if(!isPopulated()) throw Exception('AccountData (e.g. username or password) is not initialized!');
+    return '$_username:$_password';
   }
 }
\ No newline at end of file
diff --git a/lib/model/breakers/BreakerProps.dart b/lib/model/breakers/BreakerProps.dart
index 86a28ae..54bf2a4 100644
--- a/lib/model/breakers/BreakerProps.dart
+++ b/lib/model/breakers/BreakerProps.dart
@@ -26,7 +26,7 @@ class BreakerProps extends DataHolder {
     for(var key in breakers.regional.keys) {
       GetBreakersReponseObject value = breakers.regional[key]!;
 
-      if(int.parse(key.split("b")[1]) >= selfVersion) {
+      if(int.parse(key.split('b')[1]) >= selfVersion) {
         if(value.areas.contains(type)) return value.message;
       }
     }
diff --git a/lib/model/chatList/chatProps.dart b/lib/model/chatList/chatProps.dart
index 06442be..c96ed6c 100644
--- a/lib/model/chatList/chatProps.dart
+++ b/lib/model/chatList/chatProps.dart
@@ -4,7 +4,7 @@ import '../../api/marianumcloud/talk/chat/getChatResponse.dart';
 import '../dataHolder.dart';
 
 class ChatProps extends DataHolder {
-  String _queryToken = "";
+  String _queryToken = '';
   DateTime _lastTokenSet = DateTime.now();
 
   GetChatResponse? _getChatResponse;
diff --git a/lib/model/endpointData.dart b/lib/model/endpointData.dart
index 8e57eee..d151435 100644
--- a/lib/model/endpointData.dart
+++ b/lib/model/endpointData.dart
@@ -21,7 +21,7 @@ class Endpoint {
   String domain;
   String path;
 
-  Endpoint({required this.domain, this.path = ""});
+  Endpoint({required this.domain, this.path = ''});
 
   String full() {
     return domain + path;
@@ -40,17 +40,17 @@ class EndpointData {
   EndpointMode getEndpointMode() {
     late String existingName;
     existingName = AccountData().getUsername();
-    return existingName.startsWith("google") ? EndpointMode.stage : EndpointMode.live;
+    return existingName.startsWith('google') ? EndpointMode.stage : EndpointMode.live;
   }
 
   Endpoint webuntis() {
     return EndpointOptions(
       live: Endpoint(
-        domain: "peleus.webuntis.com",
+        domain: 'peleus.webuntis.com',
       ),
       staged: Endpoint(
-        domain: "mhsl.eu",
-        path: "/marianum/marianummobile/webuntis/public/index.php/api"
+        domain: 'mhsl.eu',
+        path: '/marianum/marianummobile/webuntis/public/index.php/api'
       ),
     ).get(getEndpointMode());
   }
@@ -58,11 +58,11 @@ class EndpointData {
   Endpoint nextcloud() {
     return EndpointOptions(
       live: Endpoint(
-        domain: "cloud.marianum-fulda.de",
+        domain: 'cloud.marianum-fulda.de',
       ),
       staged: Endpoint(
-        domain: "mhsl.eu",
-        path: "/marianum/marianummobile/cloud",
+        domain: 'mhsl.eu',
+        path: '/marianum/marianummobile/cloud',
       )
     ).get(getEndpointMode());
   }
diff --git a/lib/model/files/filesProps.dart b/lib/model/files/filesProps.dart
index 4c94874..a7160c2 100644
--- a/lib/model/files/filesProps.dart
+++ b/lib/model/files/filesProps.dart
@@ -12,7 +12,7 @@ extension ExtendedList on List {
 
 class FilesProps extends DataHolder {
   List<String> folderPath = List<String>.empty(growable: true);
-  String currentFolderName = "Home";
+  String currentFolderName = 'Home';
 
   ListFilesResponse? _listFilesResponse;
   ListFilesResponse get listFilesResponse => _listFilesResponse!;
@@ -32,7 +32,7 @@ class FilesProps extends DataHolder {
     _listFilesResponse = null;
     notifyListeners();
     ListFilesCache(
-      path: folderPath.isEmpty ? "/" : folderPath.join("/"),
+      path: folderPath.isEmpty ? '/' : folderPath.join('/'),
       onUpdate: (ListFilesResponse data) => {
         _listFilesResponse = data,
         notifyListeners(),
@@ -48,7 +48,7 @@ class FilesProps extends DataHolder {
 
   void popFolder() {
     folderPath.removeLast();
-    if(folderPath.isEmpty) currentFolderName = "Home";
+    if(folderPath.isEmpty) currentFolderName = 'Home';
     run();
   }
 }
\ No newline at end of file
diff --git a/lib/model/timetable/timetableProps.dart b/lib/model/timetable/timetableProps.dart
index aa64492..d12282f 100644
--- a/lib/model/timetable/timetableProps.dart
+++ b/lib/model/timetable/timetableProps.dart
@@ -49,8 +49,8 @@ class TimetableProps extends DataHolder {
   @override
   void run({renew}) {
     GetTimetableCache(
-      startdate: int.parse(DateFormat("yyyyMMdd").format(startDate)),
-      enddate: int.parse(DateFormat("yyyyMMdd").format(endDate)),
+      startdate: int.parse(DateFormat('yyyyMMdd').format(startDate)),
+      enddate: int.parse(DateFormat('yyyyMMdd').format(endDate)),
       onUpdate: (GetTimetableResponse data) => {
         _getTimetableResponse = data,
         notifyListeners(),
diff --git a/lib/notification/notificationController.dart b/lib/notification/notificationController.dart
index 1cccc2b..f5babc9 100644
--- a/lib/notification/notificationController.dart
+++ b/lib/notification/notificationController.dart
@@ -49,11 +49,11 @@ class NotificationController {
 
     DebugTile(context).run(() {
       showDialog(context: context, builder: (context) => AlertDialog(
-        title: const Text("Notification report"),
+        title: const Text('Notification report'),
         content: Column(
           mainAxisSize: MainAxisSize.min,
           children: [
-            const Text("Dieser Bericht wird angezeigt, da du den Entwicklermodus aktiviert hast und die App über eine Benachrichtigung geöffnet wurde."),
+            const Text('Dieser Bericht wird angezeigt, da du den Entwicklermodus aktiviert hast und die App über eine Benachrichtigung geöffnet wurde.'),
             Text(JsonViewer.format(message.data)),
           ],
         ),
diff --git a/lib/notification/notifyUpdater.dart b/lib/notification/notifyUpdater.dart
index fa32d09..b22d221 100644
--- a/lib/notification/notifyUpdater.dart
+++ b/lib/notification/notifyUpdater.dart
@@ -10,13 +10,13 @@ import '../widget/confirmDialog.dart';
 class NotifyUpdater {
   static ConfirmDialog enableAfterDisclaimer(SettingsProvider settings) {
     return ConfirmDialog(
-      title: "Warnung",
+      title: 'Warnung',
       icon: Icons.warning_amber,
-      content: ""
-          "Die Push-Benachrichtigungen werden durch mhsl.eu versendet.\n\n"
-          "Durch das aktivieren dieser Funktion wird dein Nutzername, dein Password und eine Geräte-ID von mhsl dauerhaft gespeichert und verarbeitet.\n\n"
-          "Für mehr Informationen drücke lange auf die Einstellungsoption!",
-      confirmButton: "Aktivieren",
+      content: ''
+          'Die Push-Benachrichtigungen werden durch mhsl.eu versendet.\n\n'
+          'Durch das aktivieren dieser Funktion wird dein Nutzername, dein Password und eine Geräte-ID von mhsl dauerhaft gespeichert und verarbeitet.\n\n'
+          'Für mehr Informationen drücke lange auf die Einstellungsoption!',
+      confirmButton: 'Aktivieren',
       onConfirm: () {
         FirebaseMessaging.instance.requestPermission(
             provisional: false
@@ -29,7 +29,7 @@ class NotifyUpdater {
   static void registerToServer() async {
     String? fcmToken = await FirebaseMessaging.instance.getToken();
 
-    if(fcmToken == null) throw Exception("Failed to register push notification because there is no FBC token!");
+    if(fcmToken == null) throw Exception('Failed to register push notification because there is no FBC token!');
 
     NotifyRegister(
       NotifyRegisterParams(
diff --git a/lib/storage/base/settingsProvider.dart b/lib/storage/base/settingsProvider.dart
index f8a8d7d..1853c30 100644
--- a/lib/storage/base/settingsProvider.dart
+++ b/lib/storage/base/settingsProvider.dart
@@ -8,7 +8,7 @@ import '../../view/settings/defaultSettings.dart';
 import 'settings.dart';
 
 class SettingsProvider extends ChangeNotifier {
-  static const String _fieldName = "settings";
+  static const String _fieldName = 'settings';
 
   late SharedPreferences _storage;
   late Settings _settings = DefaultSettings.get();
@@ -45,13 +45,13 @@ class SettingsProvider extends ChangeNotifier {
       _settings = Settings.fromJson(jsonDecode(_storage.getString(_fieldName)!));
     } catch(exception) {
       try {
-        log("Settings were changed, trying to recover from old Settings: ${exception.toString()}");
+        log('Settings were changed, trying to recover from old Settings: ${exception.toString()}');
         _settings = Settings.fromJson(_mergeSettings(jsonDecode(_storage.getString(_fieldName)!), DefaultSettings.get().toJson()));
-        log("Settings recovered successfully: ${_settings.toJson().toString()}");
+        log('Settings recovered successfully: ${_settings.toJson().toString()}');
       } catch(exception) {
-        log("Settings are defective and not recoverable, using defaults: ${exception.toString()}");
+        log('Settings are defective and not recoverable, using defaults: ${exception.toString()}');
         _settings = DefaultSettings.get();
-        log("Settings were reset to defaults!");
+        log('Settings were reset to defaults!');
       }
     }
 
diff --git a/lib/theming/appTheme.dart b/lib/theming/appTheme.dart
index 4a98ed0..717bb74 100644
--- a/lib/theming/appTheme.dart
+++ b/lib/theming/appTheme.dart
@@ -4,13 +4,13 @@ class AppTheme {
   static ThemeModeDisplay getDisplayOptions(ThemeMode theme) {
     switch(theme) {
       case ThemeMode.system:
-        return ThemeModeDisplay(icon: Icons.auto_fix_high_outlined, displayName: "Systemvorgabe");
+        return ThemeModeDisplay(icon: Icons.auto_fix_high_outlined, displayName: 'Systemvorgabe');
 
       case ThemeMode.light:
-        return ThemeModeDisplay(icon: Icons.wb_sunny_outlined, displayName: "Hell");
+        return ThemeModeDisplay(icon: Icons.wb_sunny_outlined, displayName: 'Hell');
 
       case ThemeMode.dark:
-        return ThemeModeDisplay(icon: Icons.dark_mode_outlined, displayName: "Dunkel");
+        return ThemeModeDisplay(icon: Icons.dark_mode_outlined, displayName: 'Dunkel');
 
     }
   }
diff --git a/lib/view/login/login.dart b/lib/view/login/login.dart
index edadcdc..a99e8be 100644
--- a/lib/view/login/login.dart
+++ b/lib/view/login/login.dart
@@ -21,7 +21,7 @@ class _LoginState extends State<Login> {
   bool displayDisclaimerText = true;
 
   String? _checkInput(value){
-    return (value ?? "").length == 0 ? "Eingabe erforderlich" : null;
+    return (value ?? '').length == 0 ? 'Eingabe erforderlich' : null;
   }
 
   Future<String?> _login(LoginData data) async {
@@ -42,7 +42,7 @@ class _LoginState extends State<Login> {
     } catch(e) {
       await AccountData().removeData();
       log(e.toString());
-      return "Benutzername oder Password falsch! (${e.toString()})";
+      return 'Benutzername oder Password falsch! (${e.toString()})';
     }
 
     await Future.delayed(const Duration(seconds: 1));
@@ -51,14 +51,14 @@ class _LoginState extends State<Login> {
 
   Future<String> _resetPassword(String name) {
     return Future.delayed(Duration.zero).then((_) {
-      return "Diese Funktion steht nicht zur Verfügung!";
+      return 'Diese Funktion steht nicht zur Verfügung!';
     });
   }
 
   @override
   Widget build(BuildContext context) {
     return FlutterLogin(
-      logo: Image.asset("assets/logo/icon.png").image,
+      logo: Image.asset('assets/logo/icon.png').image,
 
       userValidator: _checkInput,
       passwordValidator: _checkInput,
@@ -84,9 +84,9 @@ class _LoginState extends State<Login> {
       ),
 
       messages: LoginMessages(
-        loginButton: "Anmelden",
-        userHint: "Nutzername",
-        passwordHint: "Passwort",
+        loginButton: 'Anmelden',
+        userHint: 'Nutzername',
+        passwordHint: 'Passwort',
       ),
 
       disableCustomPageTransformer: true,
@@ -97,15 +97,15 @@ class _LoginState extends State<Login> {
           child: Visibility(
             visible: displayDisclaimerText,
             child: const Text(
-            "Dies ist ein Inoffizieller Nextcloud & Webuntis Client und wird nicht vom Marianum selbst betrieben.\nKeinerlei Gewähr für Vollständigkeit, Richtigkeit und Aktualität!",
+            'Dies ist ein Inoffizieller Nextcloud & Webuntis Client und wird nicht vom Marianum selbst betrieben.\nKeinerlei Gewähr für Vollständigkeit, Richtigkeit und Aktualität!',
             textAlign: TextAlign.center,
             ),
           ),
         ),
       ),
 
-      footer: "Marianum Fulda - Die persönliche Schule",
-      title: "Marianum Fulda",
+      footer: 'Marianum Fulda - Die persönliche Schule',
+      title: 'Marianum Fulda',
 
       userType: LoginUserType.name,
     );
diff --git a/lib/view/pages/files/fileElement.dart b/lib/view/pages/files/fileElement.dart
index 23ad2ff..02c1e09 100644
--- a/lib/view/pages/files/fileElement.dart
+++ b/lib/view/pages/files/fileElement.dart
@@ -6,7 +6,7 @@ import 'package:flowder/flowder.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:jiffy/jiffy.dart';
-import 'package:marianum_mobile/widget/infoDialog.dart';
+import '../../../widget/infoDialog.dart';
 import 'package:nextcloud/nextcloud.dart';
 import 'package:path_provider/path_provider.dart';
 
@@ -29,7 +29,7 @@ class FileElement extends StatefulWidget {
     Directory paths = await getTemporaryDirectory();
     
     var encodedPath = Uri.encodeComponent(remotePath);
-    encodedPath = encodedPath.replaceAll("%2F", "/");
+    encodedPath = encodedPath.replaceAll('%2F', '/');
 
     String local = paths.path + Platform.pathSeparator + name;
 
@@ -44,7 +44,7 @@ class FileElement extends StatefulWidget {
       onDone: () {
         //Future<OpenResult> result = OpenFile.open(local); // TODO legacy - refactor: remove onDone parameter
         Navigator.of(context).push(MaterialPageRoute(builder: (context) => FileViewer(path: local)));
-        onDone(OpenResult(message: "File viewer opened", type: ResultType.done));
+        onDone(OpenResult(message: 'File viewer opened', type: ResultType.done));
         // result.then((value) => {
         //   onDone(value)
         // });
@@ -71,21 +71,21 @@ class _FileElementState extends State<FileElement> {
         children: [
           Container(
             margin: const EdgeInsets.only(right: 10),
-            child: const Text("Download:"),
+            child: const Text('Download:'),
           ),
           Expanded(
             child: LinearProgressIndicator(value: percent/100),
           ),
           Container(
             margin: const EdgeInsets.only(left: 10),
-            child: Text("${percent.round()}%"),
+            child: Text('${percent.round()}%'),
           ),
         ],
       );
     }
     return widget.file.isDirectory
-        ? Text("geändert ${Jiffy.parseFromDateTime(widget.file.modifiedAt ?? DateTime.now()).fromNow()}")
-        : Text("${filesize(widget.file.size)}, ${Jiffy.parseFromDateTime(widget.file.modifiedAt ?? DateTime.now()).fromNow()}");
+        ? Text('geändert ${Jiffy.parseFromDateTime(widget.file.modifiedAt ?? DateTime.now()).fromNow()}')
+        : Text('${filesize(widget.file.size)}, ${Jiffy.parseFromDateTime(widget.file.modifiedAt ?? DateTime.now()).fromNow()}');
   }
 
   @override
@@ -106,17 +106,17 @@ class _FileElementState extends State<FileElement> {
           ));
         } else {
           if(EndpointData().getEndpointMode() == EndpointMode.stage) {
-            InfoDialog.show(context, "Virtuelle Dateien im Staging Prozess können nicht heruntergeladen werden!");
+            InfoDialog.show(context, 'Virtuelle Dateien im Staging Prozess können nicht heruntergeladen werden!');
             return;
           }
           if(widget.file.currentlyDownloading) {
             showDialog(
               context: context,
               builder: (context) => ConfirmDialog(
-                title: "Download abbrechen?",
-                content: "Möchtest du den Download abbrechen?",
-                cancelButton: "Nein",
-                confirmButton: "Ja, Abbrechen",
+                title: 'Download abbrechen?',
+                content: 'Möchtest du den Download abbrechen?',
+                cancelButton: 'Nein',
+                confirmButton: 'Ja, Abbrechen',
                 onConfirm: () {
                   downloadCore?.then((value) {
                     if(!value.isCancelled) value.cancel();
@@ -143,7 +143,7 @@ class _FileElementState extends State<FileElement> {
             if(result.type != ResultType.done) {
               showDialog(context: context, builder: (context) {
                 return AlertDialog(
-                  title: const Text("Download"),
+                  title: const Text('Download'),
                   content: Text(result.message),
                 );
               });
@@ -163,12 +163,12 @@ class _FileElementState extends State<FileElement> {
             children: [
               ListTile(
                 leading: const Icon(Icons.delete_outline),
-                title: const Text("Löschen"),
+                title: const Text('Löschen'),
                 onTap: () {
                   Navigator.of(context).pop();
                   showDialog(context: context, builder: (context) => ConfirmDialog(
-                    title: "Element löschen?",
-                    content: "Das Element wird unwiederruflich gelöscht.",
+                    title: 'Element löschen?',
+                    content: 'Das Element wird unwiederruflich gelöscht.',
                     onConfirm: () {
                       WebdavApi.webdav
                           .then((value) => value.delete(PathUri.parse(widget.file.path)))
@@ -181,7 +181,7 @@ class _FileElementState extends State<FileElement> {
                 visible: !kReleaseMode,
                 child: ListTile(
                   leading: const Icon(Icons.share_outlined),
-                  title: const Text("Teilen"),
+                  title: const Text('Teilen'),
                   onTap: () {
                     Navigator.of(context).pop();
                     UnimplementedDialog.show(context);
diff --git a/lib/view/pages/files/fileUploadDialog.dart b/lib/view/pages/files/fileUploadDialog.dart
index f4fa898..6322ee5 100644
--- a/lib/view/pages/files/fileUploadDialog.dart
+++ b/lib/view/pages/files/fileUploadDialog.dart
@@ -43,8 +43,8 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
       setState(() {
         state = FileUploadState.checkConflict;
       });
-      List<WebDavResponse> result = (await webdavClient.propfind(PathUri.parse(widget.remotePath.join("/")))).responses;
-      if(result.any((element) => element.href!.endsWith("/$targetFileName"))) {
+      List<WebDavResponse> result = (await webdavClient.propfind(PathUri.parse(widget.remotePath.join('/')))).responses;
+      if(result.any((element) => element.href!.endsWith('/$targetFileName'))) {
         setState(() {
           state = FileUploadState.conflict;
         });
@@ -57,7 +57,7 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
     }
 
     Future<HttpClientResponse> uploadTask = webdavClient.putFile(File(widget.localPath), FileStat.statSync(widget.localPath), PathUri.parse(fullRemotePath)); // TODO use onProgress from putFile
-    uploadTask.then((value) => Future<HttpClientResponse?>.value(value)).catchError((e) {
+    uploadTask.then(Future<HttpClientResponse?>.value).catchError((e) {
       setState(() {
         state = FileUploadState.error;
       });
@@ -67,7 +67,7 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
 
     cancelableOperation = CancelableOperation<HttpClientResponse>.fromFuture(
       uploadTask,
-      onCancel: () => log("Upload cancelled"),
+      onCancel: () => log('Upload cancelled'),
     );
 
     cancelableOperation!.then((value) {
@@ -88,7 +88,7 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
   void initState() {
     super.initState();
     targetFileName = widget.fileName;
-    remoteFolderName = widget.remotePath.isNotEmpty ? widget.remotePath.last : "/";
+    remoteFolderName = widget.remotePath.isNotEmpty ? widget.remotePath.last : '/';
     fileNameController.text = widget.fileName;
   }
   
@@ -96,7 +96,7 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
   Widget build(BuildContext context) {
     if(state == FileUploadState.naming) {
       return AlertDialog(
-        title: const Text("Datei hochladen"),
+        title: const Text('Datei hochladen'),
         content: Column(
           mainAxisSize: MainAxisSize.min,
           children: [
@@ -107,7 +107,7 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
               },
               autocorrect: false,
               decoration: const InputDecoration(
-                labelText: "Dateiname",
+                labelText: 'Dateiname',
               ),
             ),
           ],
@@ -115,10 +115,10 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
         actions: [
           TextButton(onPressed: () {
             Navigator.of(context).pop();
-          }, child: const Text("Abbrechen")),
+          }, child: const Text('Abbrechen')),
           TextButton(onPressed: () async {
             upload();
-          }, child: const Text("Hochladen")),
+          }, child: const Text('Hochladen')),
         ],
 
       );
@@ -127,7 +127,7 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
     if(state == FileUploadState.conflict) {
       return AlertDialog(
         icon: const Icon(Icons.error_outline),
-        title: const Text("Datei konflikt"),
+        title: const Text('Datei konflikt'),
         content: Column(
           mainAxisSize: MainAxisSize.min,
           children: [
@@ -139,10 +139,10 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
             setState(() {
               state = FileUploadState.naming;
             });
-          }, child: const Text("Datei umbenennen")),
+          }, child: const Text('Datei umbenennen')),
           TextButton(onPressed: () {
             upload(override: true);
-          }, child: const Text("Datei überschreiben")),
+          }, child: const Text('Datei überschreiben')),
         ],
 
       );
@@ -151,15 +151,15 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
     if(state == FileUploadState.upload || state == FileUploadState.checkConflict) {
       return AlertDialog(
         icon: const Icon(Icons.upload),
-        title: const Text("Hochladen"),
+        title: const Text('Hochladen'),
         content: Column(
           mainAxisSize: MainAxisSize.min,
           mainAxisAlignment: MainAxisAlignment.center,
           children: [
             Visibility(
               visible: state == FileUploadState.upload,
-              replacement: const Text("Prüfe auf dateikonflikte..."),
-              child: const Text("Upload läuft!\nDies kann je nach Dateigröße einige Zeit dauern...", textAlign: TextAlign.center),
+              replacement: const Text('Prüfe auf dateikonflikte...'),
+              child: const Text('Upload läuft!\nDies kann je nach Dateigröße einige Zeit dauern...', textAlign: TextAlign.center),
             ),
             const SizedBox(height: 30),
             const CircularProgressIndicator()
@@ -183,7 +183,7 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
       }
       return AlertDialog(
         icon: const Icon(Icons.done),
-        title: const Text("Upload fertig"),
+        title: const Text('Upload fertig'),
         content: Column(
           mainAxisSize: MainAxisSize.min,
           children: [
@@ -193,7 +193,7 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
         actions: [
           TextButton(onPressed: () {
             Navigator.of(context).pop();
-          }, child: const Text("Fertig")),
+          }, child: const Text('Fertig')),
         ],
 
       );
@@ -202,23 +202,23 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
     if(state == FileUploadState.error) {
       return AlertDialog(
         icon: const Icon(Icons.error_outline),
-        title: const Text("Fehler"),
+        title: const Text('Fehler'),
         content: const Column(
           mainAxisSize: MainAxisSize.min,
           children: [
-            Text("Es ist ein Fehler aufgetreten!", textAlign: TextAlign.center),
+            Text('Es ist ein Fehler aufgetreten!', textAlign: TextAlign.center),
           ],
         ),
         actions: [
           TextButton(onPressed: () {
             Navigator.of(context).pop();
-          }, child: const Text("Schlißen")),
+          }, child: const Text('Schlißen')),
         ],
 
       );
     }
 
-    throw UnimplementedError("Invalid state");
+    throw UnimplementedError('Invalid state');
 
   }
 }
diff --git a/lib/view/pages/files/files.dart b/lib/view/pages/files/files.dart
index 59e4f8c..b377cbf 100644
--- a/lib/view/pages/files/files.dart
+++ b/lib/view/pages/files/files.dart
@@ -43,17 +43,17 @@ enum SortOption {
 class SortOptions {
   static Map<SortOption, BetterSortOption> options = {
     SortOption.name: BetterSortOption(
-      displayName: "Name",
+      displayName: 'Name',
       icon: Icons.sort_by_alpha_outlined,
       compare: (CacheableFile a, CacheableFile b) => a.name.compareTo(b.name)
     ),
     SortOption.date: BetterSortOption(
-      displayName: "Datum",
+      displayName: 'Datum',
       icon: Icons.history_outlined,
       compare: (CacheableFile a, CacheableFile b) => a.modifiedAt!.compareTo(b.modifiedAt!)
     ),
     SortOption.size: BetterSortOption(
-      displayName: "Größe",
+      displayName: 'Größe',
       icon: Icons.sd_card_outlined,
       compare: (CacheableFile a, CacheableFile b) {
         if(a.isDirectory || b.isDirectory) return a.isDirectory ? 1 : 0;
@@ -88,7 +88,7 @@ class _FilesState extends State<Files> {
 
   void _query() {
     ListFilesCache(
-        path: widget.path.isEmpty ? "/" : widget.path.join("/"),
+        path: widget.path.isEmpty ? '/' : widget.path.join('/'),
         onUpdate: (ListFilesResponse d) {
           if(!context.mounted) return; // prevent setState when widget is possibly already disposed
           d.files.removeWhere((element) => element.name.isEmpty || element.name == widget.path.lastOrNull());
@@ -109,7 +109,7 @@ class _FilesState extends State<Files> {
 
     return Scaffold(
       appBar: AppBar(
-        title: Text(widget.path.isNotEmpty ? widget.path.last : "Dateien"),
+        title: Text(widget.path.isNotEmpty ? widget.path.last : 'Dateien'),
         actions: [
           // IconButton(
           //   icon: const Icon(Icons.search),
@@ -127,7 +127,7 @@ class _FilesState extends State<Files> {
                     children: [
                       Icon(e ? Icons.text_rotate_up : Icons.text_rotation_down, color: Theme.of(context).colorScheme.onSurface),
                       const SizedBox(width: 15),
-                      Text(e ? "Aufsteigend" : "Absteigend")
+                      Text(e ? 'Aufsteigend' : 'Absteigend')
                     ],
                   )
               )).toList();
@@ -164,7 +164,7 @@ class _FilesState extends State<Files> {
         ],
       ),
       floatingActionButton: FloatingActionButton(
-        heroTag: "uploadFile",
+        heroTag: 'uploadFile',
         backgroundColor: Theme.of(context).primaryColor,
         onPressed: () {
           showDialog(context: context, builder: (context) {
@@ -172,29 +172,29 @@ class _FilesState extends State<Files> {
               children: [
                 ListTile(
                   leading: const Icon(Icons.create_new_folder_outlined),
-                  title: const Text("Ordner erstellen"),
+                  title: const Text('Ordner erstellen'),
                   onTap: () {
                     Navigator.of(context).pop();
                     showDialog(context: context, builder: (context) {
                       var inputController = TextEditingController();
                       return AlertDialog(
-                        title: const Text("Neuer Ordner"),
+                        title: const Text('Neuer Ordner'),
                         content: TextField(
                           controller: inputController,
                           decoration: const InputDecoration(
-                            labelText: "Name",
+                            labelText: 'Name',
                           ),
                         ),
                         actions: [
                           TextButton(onPressed: () {
                             Navigator.of(context).pop();
-                          }, child: const Text("Abbrechen")),
+                          }, child: const Text('Abbrechen')),
                           TextButton(onPressed: () {
                             WebdavApi.webdav.then((webdav) {
                               webdav.mkcol(PathUri.parse("${widget.path.join("/")}/${inputController.text}")).then((value) => _query());
                             });
                             Navigator.of(context).pop();
-                          }, child: const Text("Ordner erstellen")),
+                          }, child: const Text('Ordner erstellen')),
                         ],
                       );
                     });
@@ -202,12 +202,10 @@ class _FilesState extends State<Files> {
                 ),
                 ListTile(
                   leading: const Icon(Icons.upload_file),
-                  title: const Text("Aus Dateien hochladen"),
+                  title: const Text('Aus Dateien hochladen'),
                   onTap: () {
                     context.loaderOverlay.show();
-                    FilePick.documentPick().then((value) {
-                      mediaUpload(value);
-                    });
+                    FilePick.documentPick().then(mediaUpload);
                     Navigator.of(context).pop();
                   },
                 ),
@@ -215,7 +213,7 @@ class _FilesState extends State<Files> {
                   visible: !Platform.isIOS,
                   child: ListTile(
                     leading: const Icon(Icons.add_a_photo_outlined),
-                    title: const Text("Aus Gallerie hochladen"),
+                    title: const Text('Aus Gallerie hochladen'),
                     onTap: () {
                       context.loaderOverlay.show();
                       FilePick.galleryPick().then((value) {
@@ -231,7 +229,7 @@ class _FilesState extends State<Files> {
         },
         child: const Icon(Icons.add),
       ),
-      body: data == null ? const LoadingSpinner() : data!.files.isEmpty ? const PlaceholderView(icon: Icons.folder_off_rounded, text: "Der Ordner ist leer") : LoaderOverlay(
+      body: data == null ? const LoadingSpinner() : data!.files.isEmpty ? const PlaceholderView(icon: Icons.folder_off_rounded, text: 'Der Ordner ist leer') : LoaderOverlay(
         child: RefreshIndicator(
           onRefresh: () {
             _query();
@@ -258,6 +256,6 @@ class _FilesState extends State<Files> {
     }
 
     var fileName = path.split(Platform.pathSeparator).last;
-    showDialog(context: context, builder: (context) => FileUploadDialog(localPath: path, remotePath: widget.path, fileName: fileName, onUploadFinished: () => _query()), barrierDismissible: false);
+    showDialog(context: context, builder: (context) => FileUploadDialog(localPath: path, remotePath: widget.path, fileName: fileName, onUploadFinished: _query), barrierDismissible: false);
   }
 }
diff --git a/lib/view/pages/more/feedback/feedbackDialog.dart b/lib/view/pages/more/feedback/feedbackDialog.dart
index 8be1c81..69c1746 100644
--- a/lib/view/pages/more/feedback/feedbackDialog.dart
+++ b/lib/view/pages/more/feedback/feedbackDialog.dart
@@ -22,20 +22,20 @@ class _FeedbackDialogState extends State<FeedbackDialog> {
   Widget build(BuildContext context) {
     return AlertDialog(
 
-      title: const Text("Feedback"),
+      title: const Text('Feedback'),
       content: Column(
         mainAxisSize: MainAxisSize.min,
         children: [
-          const Text("Feedback, Anregungen, Ideen, Fehler und Verbesserungen"),
+          const Text('Feedback, Anregungen, Ideen, Fehler und Verbesserungen'),
           const SizedBox(height: 10),
-          const Text("Bitte gib keine geheimen Daten wie z.B. Passwörter weiter.", style: TextStyle(fontSize: 10)),
+          const Text('Bitte gib keine geheimen Daten wie z.B. Passwörter weiter.', style: TextStyle(fontSize: 10)),
           const SizedBox(height: 10),
           TextField(
             controller: _feedbackInput,
             autofocus: true,
             decoration: const InputDecoration(
               border: OutlineInputBorder(),
-              label: Text("Feedback und Verbesserungen")
+              label: Text('Feedback und Verbesserungen')
             ),
             // style: TextStyle(),
             // expands: true,
@@ -44,12 +44,12 @@ class _FeedbackDialogState extends State<FeedbackDialog> {
           ),
           Visibility(
             visible: _error != null,
-            child: Text("Senden fehlgeschlagen: $_error", style: const TextStyle(color: Colors.red))
+            child: Text('Senden fehlgeschlagen: $_error', style: const TextStyle(color: Colors.red))
           )
         ],
       ),
       actions: [
-        TextButton(onPressed: () => Navigator.of(context).pop(), child: const Text("Abbrechen")),
+        TextButton(onPressed: () => Navigator.of(context).pop(), child: const Text('Abbrechen')),
         TextButton(
           onPressed: () async {
             AddFeedback(
@@ -62,7 +62,7 @@ class _FeedbackDialogState extends State<FeedbackDialog> {
             .run()
             .then((value) {
               Navigator.of(context).pop();
-              InfoDialog.show(context, "Danke für dein Feedback!");
+              InfoDialog.show(context, 'Danke für dein Feedback!');
             })
             .catchError((error, trace) {
                 setState(() {
@@ -70,7 +70,7 @@ class _FeedbackDialogState extends State<FeedbackDialog> {
                 });
             });
           },
-          child: const Text("Senden"),
+          child: const Text('Senden'),
         )
       ],
     );
diff --git a/lib/view/pages/more/gradeAverages/gradeAverage.dart b/lib/view/pages/more/gradeAverages/gradeAverage.dart
index 357c2cd..8f5c15a 100644
--- a/lib/view/pages/more/gradeAverages/gradeAverage.dart
+++ b/lib/view/pages/more/gradeAverages/gradeAverage.dart
@@ -24,7 +24,7 @@ class _GradeAverageState extends State<GradeAverage> {
 
   String getGradeDisplay(int grade) {
     if(gradeSystem) {
-      return "Note $grade";
+      return 'Note $grade';
     } else {
       return "$grade Punkt${grade > 1 ? "e" : ""}";
     }
@@ -48,22 +48,22 @@ class _GradeAverageState extends State<GradeAverage> {
       if(!settings.val().gradeAveragesSettings.askedForPreferredGradeSystem) {
         settings.val(write: true).gradeAveragesSettings.askedForPreferredGradeSystem = true;
         showDialog(context: context, builder: (context) => AlertDialog(
-          title: const Text("Notensystem"),
-          content: const Text("Wähle dein bevorzugtes Schulnotensystem"),
+          title: const Text('Notensystem'),
+          content: const Text('Wähle dein bevorzugtes Schulnotensystem'),
           actions: [
             TextButton(
               onPressed: () {
                 switchSystem(true);
                 Navigator.of(context).pop();
               },
-              child: const Text("Realschule"),
+              child: const Text('Realschule'),
             ),
             TextButton(
               onPressed: () {
                 switchSystem(false);
                 Navigator.of(context).pop();
               },
-              child: const Text("Oberstufe"),
+              child: const Text('Oberstufe'),
             ),
           ],
         ));
@@ -81,7 +81,7 @@ class _GradeAverageState extends State<GradeAverage> {
 
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Notendurschnittsrechner"),
+        title: const Text('Notendurschnittsrechner'),
         actions: [
           Visibility(
             visible: grades.isNotEmpty,
@@ -89,9 +89,9 @@ class _GradeAverageState extends State<GradeAverage> {
               showDialog(
                 context: context,
                 builder: (context) => ConfirmDialog(
-                  title: "Zurücksetzen?",
-                  content: "Alle Einträge werden entfernt.",
-                  confirmButton: "Zurücksetzen",
+                  title: 'Zurücksetzen?',
+                  content: 'Alle Einträge werden entfernt.',
+                  confirmButton: 'Zurücksetzen',
                   onConfirm: () {
                     grades.clear();
                     setState(() {});
@@ -109,7 +109,7 @@ class _GradeAverageState extends State<GradeAverage> {
                 children: [
                   Icon(e ? Icons.calculate_outlined : Icons.school_outlined, color: Theme.of(context).colorScheme.onSurface),
                   const SizedBox(width: 15),
-                  Text(e ? "Notensystem" : "Punktesystem"),
+                  Text(e ? 'Notensystem' : 'Punktesystem'),
                 ],
               ),
             )).toList(),
@@ -120,9 +120,9 @@ class _GradeAverageState extends State<GradeAverage> {
                 showDialog(
                   context: context,
                   builder: (context) => ConfirmDialog(
-                    title: "Notensystem wechseln",
-                    content: "Beim wechsel des Notensystems werden alle Einträge zurückgesetzt.",
-                    confirmButton: "Fortfahren",
+                    title: 'Notensystem wechseln',
+                    content: 'Beim wechsel des Notensystems werden alle Einträge zurückgesetzt.',
+                    confirmButton: 'Fortfahren',
                     onConfirm: () => switchSystem(e),
                   ),
                 );
@@ -142,7 +142,7 @@ class _GradeAverageState extends State<GradeAverage> {
           const SizedBox(height: 10),
           const Divider(),
           const SizedBox(height: 10),
-          Text(gradeSystem ? "Wähle unten die Anzahl deiner jewiligen Noten aus" : "Wähle unten die Anzahl deiner jeweiligen Punkte aus"),
+          Text(gradeSystem ? 'Wähle unten die Anzahl deiner jewiligen Noten aus' : 'Wähle unten die Anzahl deiner jeweiligen Punkte aus'),
           const SizedBox(height: 10),
           Expanded(
             child: ListView.builder(
@@ -169,7 +169,7 @@ class _GradeAverageState extends State<GradeAverage> {
                             icon: const Icon(Icons.remove),
                             color: Theme.of(context).colorScheme.onSurface,
                           ),
-                          Text("${grades.where(isThis).length}", style: const TextStyle(fontSize: 15, fontWeight: FontWeight.bold)),
+                          Text('${grades.where(isThis).length}', style: const TextStyle(fontSize: 15, fontWeight: FontWeight.bold)),
                           IconButton(
                             onPressed: () {
                               setState(() {
diff --git a/lib/view/pages/more/holidays/holidays.dart b/lib/view/pages/more/holidays/holidays.dart
index 3bbe91d..477915a 100644
--- a/lib/view/pages/more/holidays/holidays.dart
+++ b/lib/view/pages/more/holidays/holidays.dart
@@ -42,23 +42,23 @@ class _HolidaysState extends State<Holidays> {
   }
 
   String parseString(String enDate) {
-    return Jiffy.parse(enDate).format(pattern: "dd.MM.yyyy");
+    return Jiffy.parse(enDate).format(pattern: 'dd.MM.yyyy');
   }
 
   void showDisclaimer() {
     showDialog(context: context, builder: (context) {
       return AlertDialog(
-        title: const Text("Richtigkeit und Bereitstellung der Daten"),
+        title: const Text('Richtigkeit und Bereitstellung der Daten'),
         content: Column(
           mainAxisSize: MainAxisSize.min,
           children: [
-            const Text(""
-                "Sämtliche Datumsangaben sind ohne Gewähr.\n"
-                "Ich übernehme weder Verantwortung für die Richtigkeit der Daten noch hafte ich für wirtschaftliche Schäden die aus der Verwendung dieser Daten entstehen können.\n\n"
-                "Die Daten stammen von https://ferien-api.de/"),
+            const Text(''
+                'Sämtliche Datumsangaben sind ohne Gewähr.\n'
+                'Ich übernehme weder Verantwortung für die Richtigkeit der Daten noch hafte ich für wirtschaftliche Schäden die aus der Verwendung dieser Daten entstehen können.\n\n'
+                'Die Daten stammen von https://ferien-api.de/'),
             const SizedBox(height: 30),
             ListTile(
-              title: const Text("Diese Meldung nicht mehr anzeigen"),
+              title: const Text('Diese Meldung nicht mehr anzeigen'),
               trailing: Checkbox(
                 value: settings.val().holidaysSettings.dismissedDisclaimer,
                 onChanged: (value) => settings.val(write: true).holidaysSettings.dismissedDisclaimer = value!,
@@ -67,8 +67,8 @@ class _HolidaysState extends State<Holidays> {
           ],
         ),
         actions: [
-          TextButton(child: const Text("ferien-api.de besuchen"), onPressed: () => ConfirmDialog.openBrowser(context, "https://ferien-api.de/")),
-          TextButton(child: const Text("Okay"), onPressed: () => Navigator.of(context).pop()),
+          TextButton(child: const Text('ferien-api.de besuchen'), onPressed: () => ConfirmDialog.openBrowser(context, 'https://ferien-api.de/')),
+          TextButton(child: const Text('Okay'), onPressed: () => Navigator.of(context).pop()),
         ],
       );
     });
@@ -78,11 +78,11 @@ class _HolidaysState extends State<Holidays> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Schulferien in Hessen"),
+        title: const Text('Schulferien in Hessen'),
         actions: [
           IconButton(
             icon: const Icon(Icons.warning_amber_outlined),
-            onPressed: () => showDisclaimer(),
+            onPressed: showDisclaimer,
           ),
           PopupMenuButton<bool>(
             initialValue: settings.val().holidaysSettings.showPastEvents,
@@ -95,7 +95,7 @@ class _HolidaysState extends State<Holidays> {
                     children: [
                       Icon(e ? Icons.history_outlined : Icons.history_toggle_off_outlined, color: Theme.of(context).colorScheme.onSurface),
                       const SizedBox(width: 15),
-                      Text(e ? "Alle anzeigen" : "Nur zukünftige anzeigen")
+                      Text(e ? 'Alle anzeigen' : 'Nur zukünftige anzeigen')
                     ],
                   )
               )).toList();
@@ -115,19 +115,19 @@ class _HolidaysState extends State<Holidays> {
         List<GetHolidaysResponseObject> holidays = value.getHolidaysResponse.data;
         if(!showPastEvents) holidays = holidays.where((element) => DateTime.parse(element.end).isAfter(DateTime.now())).toList();
 
-        if(holidays.isEmpty) return const PlaceholderView(icon: Icons.search_off, text: "Es wurden keine Ferieneinträge gefunden!");
+        if(holidays.isEmpty) return const PlaceholderView(icon: Icons.search_off, text: 'Es wurden keine Ferieneinträge gefunden!');
 
         return ListView.builder(
             itemCount: holidays.length,
             itemBuilder: (context, index) {
               GetHolidaysResponseObject holiday = holidays[index];
-              String holidayType = holiday.name.split(" ").first.capitalize();
+              String holidayType = holiday.name.split(' ').first.capitalize();
               return ListTile(
                 leading: const CenteredLeading(Icon(Icons.calendar_month)),
-                title: Text("$holidayType ab ${parseString(holiday.start)}"),
-                subtitle: Text("bis ${parseString(holiday.end)}"),
+                title: Text('$holidayType ab ${parseString(holiday.start)}'),
+                subtitle: Text('bis ${parseString(holiday.end)}'),
                 onTap: () => showDialog(context: context, builder: (context) => SimpleDialog(
-                  title: Text("$holidayType ${holiday.year} in Hessen"),
+                  title: Text('$holidayType ${holiday.year} in Hessen'),
                   children: [
                     ListTile(
                       leading: const CenteredLeading(Icon(Icons.signpost_outlined)),
@@ -136,11 +136,11 @@ class _HolidaysState extends State<Holidays> {
                     ),
                     ListTile(
                       leading: const Icon(Icons.arrow_forward),
-                      title: Text("vom ${parseString(holiday.start)}"),
+                      title: Text('vom ${parseString(holiday.start)}'),
                     ),
                     ListTile(
                       leading: const Icon(Icons.arrow_back),
-                      title: Text("bis zum ${parseString(holiday.end)}"),
+                      title: Text('bis zum ${parseString(holiday.end)}'),
                     ),
                     Visibility(
                       visible: !DateTime.parse(holiday.start).difference(DateTime.now()).isNegative,
diff --git a/lib/view/pages/more/message/message.dart b/lib/view/pages/more/message/message.dart
index b3d9a7a..3d12f3f 100644
--- a/lib/view/pages/more/message/message.dart
+++ b/lib/view/pages/more/message/message.dart
@@ -27,7 +27,7 @@ class _MessageState extends State<Message> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Marianum Message"),
+        title: const Text('Marianum Message'),
       ),
       body: Consumer<MessageProps>(builder: (context, value, child) {
         if(value.primaryLoading()) return const LoadingSpinner();
@@ -43,7 +43,7 @@ class _MessageState extends State<Message> {
                     children: [Icon(Icons.newspaper)],
                   ),
                   title: Text(message.name, overflow: TextOverflow.ellipsis),
-                  subtitle: Text("vom ${message.date}"),
+                  subtitle: Text('vom ${message.date}'),
                   trailing: const Icon(Icons.arrow_right),
                   onTap: () {
                     Navigator.push(context, MaterialPageRoute(builder: (context) => MessageView(basePath: value.getMessagesResponse.base, message: message)));
diff --git a/lib/view/pages/more/message/messageView.dart b/lib/view/pages/more/message/messageView.dart
index 205392d..63b25fc 100644
--- a/lib/view/pages/more/message/messageView.dart
+++ b/lib/view/pages/more/message/messageView.dart
@@ -29,12 +29,12 @@ class _MessageViewState extends State<MessageView> {
           Navigator.of(context).pop();
           showDialog(context: context, builder: (context) {
             return AlertDialog(
-              title: const Text("Fehler beim öffnen"),
+              title: const Text('Fehler beim öffnen'),
               content: Text("Dokument '${widget.message.name}' konnte nicht geladen werden:\n${e.description}"),
               actions: [
                 TextButton(onPressed: () {
                   Navigator.of(context).pop();
-                }, child: const Text("Ok"))
+                }, child: const Text('Ok'))
               ],
             );
           });
@@ -43,9 +43,9 @@ class _MessageViewState extends State<MessageView> {
           showDialog(
             context: context,
             builder: (context) => ConfirmDialog(
-              title: "Link öffnen",
-              content: "Möchtest du den folgenden Link öffnen?\n${e.uri}",
-              confirmButton: "Öffnen",
+              title: 'Link öffnen',
+              content: 'Möchtest du den folgenden Link öffnen?\n${e.uri}',
+              confirmButton: 'Öffnen',
               onConfirm: () => launchUrl(Uri.parse(e.uri), mode: LaunchMode.externalApplication),
             ),
           );
diff --git a/lib/view/pages/more/roomplan/roomplan.dart b/lib/view/pages/more/roomplan/roomplan.dart
index 674c9f3..09f365f 100644
--- a/lib/view/pages/more/roomplan/roomplan.dart
+++ b/lib/view/pages/more/roomplan/roomplan.dart
@@ -8,10 +8,10 @@ class Roomplan extends StatelessWidget {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Raumplan"),
+        title: const Text('Raumplan'),
       ),
       body: PhotoView(
-        imageProvider: Image.asset("assets/img/raumplan.jpg").image,
+        imageProvider: Image.asset('assets/img/raumplan.jpg').image,
         minScale: 0.5,
         maxScale: 2.0,
         backgroundDecoration: BoxDecoration(color: Theme.of(context).colorScheme.background),
diff --git a/lib/view/pages/more/share/qrShareView.dart b/lib/view/pages/more/share/qrShareView.dart
index dad4dea..6e52b54 100644
--- a/lib/view/pages/more/share/qrShareView.dart
+++ b/lib/view/pages/more/share/qrShareView.dart
@@ -16,18 +16,18 @@ class _QrShareViewState extends State<QrShareView> {
       length: 2,
       child: Scaffold(
         appBar: AppBar(
-          title: const Text("Teile die App"),
+          title: const Text('Teile die App'),
           bottom: const TabBar(
             tabs: [
-              Tab(icon: Icon(Icons.android_outlined), text: "Android"),
-              Tab(icon: Icon(Icons.apple_outlined), text: "iOS & iPadOS"),
+              Tab(icon: Icon(Icons.android_outlined), text: 'Android'),
+              Tab(icon: Icon(Icons.apple_outlined), text: 'iOS & iPadOS'),
             ],
           ),
         ),
         body: const TabBarView(
           children: [
-            AppSharePlatformView("Für Android", "https://play.google.com/store/apps/details?id=eu.mhsl.marianum.mobile.client"),
-            AppSharePlatformView("Für iOS & iPad", "https://apps.apple.com/us/app/marianum-fulda/id6458789560"),
+            AppSharePlatformView('Für Android', 'https://play.google.com/store/apps/details?id=eu.mhsl.marianum.mobile.client'),
+            AppSharePlatformView('Für iOS & iPad', 'https://apps.apple.com/us/app/marianum-fulda/id6458789560'),
           ],
         ),
       ),
diff --git a/lib/view/pages/more/share/selectShareTypeDialog.dart b/lib/view/pages/more/share/selectShareTypeDialog.dart
index 7cd1b5c..a10097d 100644
--- a/lib/view/pages/more/share/selectShareTypeDialog.dart
+++ b/lib/view/pages/more/share/selectShareTypeDialog.dart
@@ -13,7 +13,7 @@ class SelectShareTypeDialog extends StatelessWidget {
       children: [
         ListTile(
           leading: const Icon(Icons.qr_code_2_outlined),
-          title: const Text("Per QR-Code"),
+          title: const Text('Per QR-Code'),
           trailing: const Icon(Icons.arrow_right),
           onTap: () {
             Navigator.of(context).push(MaterialPageRoute(builder: (context) => const QrShareView()));
@@ -21,16 +21,16 @@ class SelectShareTypeDialog extends StatelessWidget {
         ),
         ListTile(
           leading: const Icon(Icons.link_outlined),
-          title: const Text("Per Link teilen"),
+          title: const Text('Per Link teilen'),
           trailing: const Icon(Icons.arrow_right),
           onTap: () {
             Share.share(
                 sharePositionOrigin: SharePositionOrigin.get(context),
-                subject: "App Teilen",
-                "Hol dir die für das Marianum maßgeschneiderte App:"
-                    "\n\nAndroid: https://play.google.com/store/apps/details?id=eu.mhsl.marianum.mobile.client "
-                    "\niOS: https://apps.apple.com/us/app/marianum-fulda/id6458789560 "
-                    "\n\nViel Spaß!"
+                subject: 'App Teilen',
+                'Hol dir die für das Marianum maßgeschneiderte App:'
+                    '\n\nAndroid: https://play.google.com/store/apps/details?id=eu.mhsl.marianum.mobile.client '
+                    '\niOS: https://apps.apple.com/us/app/marianum-fulda/id6458789560 '
+                    '\n\nViel Spaß!'
             );
           },
         )
diff --git a/lib/view/pages/overhang.dart b/lib/view/pages/overhang.dart
index 8d033f0..4c1b008 100644
--- a/lib/view/pages/overhang.dart
+++ b/lib/view/pages/overhang.dart
@@ -3,7 +3,7 @@ import 'dart:io';
 
 import 'package:flutter/material.dart';
 import 'package:in_app_review/in_app_review.dart';
-import 'package:marianum_mobile/extensions/renderNotNull.dart';
+import '../../extensions/renderNotNull.dart';
 import 'package:persistent_bottom_nav_bar_v2/persistent_bottom_nav_bar_v2.dart';
 
 import '../../widget/ListItem.dart';
@@ -26,23 +26,23 @@ class Overhang extends StatelessWidget {
 
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Mehr"),
+        title: const Text('Mehr'),
         actions: [
           IconButton(onPressed: () => pushScreen(context, screen: const Settings(), withNavBar: false), icon: const Icon(Icons.settings))
         ],
       ),
       body: ListView(
         children: [
-          const ListItemNavigator(icon: Icons.newspaper, text: "Marianum Message", target: Message()),
-          const ListItemNavigator(icon: Icons.room, text: "Raumplan", target: Roomplan()),
-          const ListItemNavigator(icon: Icons.calculate, text: "Notendurschnittsrechner", target: GradeAverage()),
+          const ListItemNavigator(icon: Icons.newspaper, text: 'Marianum Message', target: Message()),
+          const ListItemNavigator(icon: Icons.room, text: 'Raumplan', target: Roomplan()),
+          const ListItemNavigator(icon: Icons.calculate, text: 'Notendurschnittsrechner', target: GradeAverage()),
           const ListItemNavigator(icon: Icons.school_outlined, text: "Abiturrechner", target: AbiturCalculatorView()),
-          const ListItemNavigator(icon: Icons.calendar_month, text: "Schulferien", target: Holidays()),
+          const ListItemNavigator(icon: Icons.calendar_month, text: 'Schulferien', target: Holidays()),
           const Divider(),
           ListTile(
             leading: const Icon(Icons.share_outlined),
-            title: const Text("Teile die App"),
-            subtitle: const Text("Mit Freunden und deiner Klasse teilen"),
+            title: const Text('Teile die App'),
+            subtitle: const Text('Mit Freunden und deiner Klasse teilen'),
             trailing: const Icon(Icons.arrow_right),
             onTap: () => showDialog(context: context, builder: (context) => const SelectShareTypeDialog())
           ),
@@ -52,19 +52,19 @@ class Overhang extends StatelessWidget {
               if(!snapshot.hasData) return const SizedBox.shrink();
 
               String? getPlatformStoreName() {
-                if(Platform.isAndroid) return "Play store";
-                if(Platform.isIOS) return "App store";
+                if(Platform.isAndroid) return 'Play store';
+                if(Platform.isIOS) return 'App store';
                 return null;
               }
 
               return ListTile(
                 leading: const CenteredLeading(Icon(Icons.star_rate_outlined)),
-                title: const Text("App Bewerten"),
-                subtitle: getPlatformStoreName().wrapNullable((data) => Text("Im $data")),
+                title: const Text('App bewerten'),
+                subtitle: getPlatformStoreName().wrapNullable((data) => Text('Im $data')),
                 trailing: const Icon(Icons.arrow_right),
                 onTap: () {
-                  InAppReview.instance.openStoreListing(appStoreId: "6458789560").then(
-                          (value) => InfoDialog.show(context, "Vielen Dank!"),
+                  InAppReview.instance.openStoreListing(appStoreId: '6458789560').then(
+                          (value) => InfoDialog.show(context, 'Vielen Dank!'),
                       onError: (error) => InfoDialog.show(context, error.toString())
                   );
                 },
@@ -73,8 +73,8 @@ class Overhang extends StatelessWidget {
           ),
           ListTile(
             leading: const CenteredLeading(Icon(Icons.feedback_outlined)),
-            title: const Text("Du hast eine Idee?"),
-            subtitle: const Text("Fehler und Verbessungsvorschläge"),
+            title: const Text('Du hast eine Idee?'),
+            subtitle: const Text('Fehler und Verbessungsvorschläge'),
             trailing: const Icon(Icons.arrow_right),
             onTap: () => showDialog(context: context, barrierDismissible: false, builder: (context) => const FeedbackDialog()),
           ),
diff --git a/lib/view/pages/talk/chatDetails/chatInfo.dart b/lib/view/pages/talk/chatDetails/chatInfo.dart
index 1b5dea7..35ebb7a 100644
--- a/lib/view/pages/talk/chatDetails/chatInfo.dart
+++ b/lib/view/pages/talk/chatDetails/chatInfo.dart
@@ -66,7 +66,7 @@ class _ChatInfoState extends State<ChatInfo> {
             if(participants != null) ...[
               ListTile(
                 leading: const Icon(Icons.supervised_user_circle),
-                title: Text("${participants!.data.length} Teilnehmer"),
+                title: Text('${participants!.data.length} Teilnehmer'),
                 trailing: const Icon(Icons.arrow_right),
                 onTap: () => TalkNavigator.pushSplitView(context, ParticipantsListView(participants!)),
               ),
diff --git a/lib/view/pages/talk/chatDetails/participants/participantsListView.dart b/lib/view/pages/talk/chatDetails/participants/participantsListView.dart
index c05a096..a96d023 100644
--- a/lib/view/pages/talk/chatDetails/participants/participantsListView.dart
+++ b/lib/view/pages/talk/chatDetails/participants/participantsListView.dart
@@ -16,7 +16,7 @@ class _ParticipantsListViewState extends State<ParticipantsListView> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Teilnehmende"),
+        title: const Text('Teilnehmende'),
       ),
       body: ListView(
         children: widget.participantsResponse.data.map((participant) {
diff --git a/lib/view/pages/talk/chatList.dart b/lib/view/pages/talk/chatList.dart
index 9628d3b..bf1cd9d 100644
--- a/lib/view/pages/talk/chatList.dart
+++ b/lib/view/pages/talk/chatList.dart
@@ -40,9 +40,9 @@ class _ChatListState extends State<ChatList> {
 
         ConfirmDialog(
           icon: Icons.notifications_active_outlined,
-          title: "Benachrichtigungen aktivieren",
-          content: "Auf wunsch kannst du Push-Benachrichtigungen aktivieren. Deine Einstellungen kannst du jederzeit ändern.",
-          confirmButton: "Weiter",
+          title: 'Benachrichtigungen aktivieren',
+          content: 'Auf wunsch kannst du Push-Benachrichtigungen aktivieren. Deine Einstellungen kannst du jederzeit ändern.',
+          confirmButton: 'Weiter',
           onConfirm: () {
             FirebaseMessaging.instance.requestPermission(
                 provisional: false
@@ -53,7 +53,7 @@ class _ChatListState extends State<ChatList> {
                   break;
                 case AuthorizationStatus.denied:
                   showDialog(context: context, builder: (context) => const AlertDialog(
-                    content: Text("Du kannst die Benachrichtigungen später jederzeit in den App-Einstellungen aktivieren."),
+                    content: Text('Du kannst die Benachrichtigungen später jederzeit in den App-Einstellungen aktivieren.'),
                   ));
                   break;
                 default:
@@ -79,7 +79,7 @@ class _ChatListState extends State<ChatList> {
       breakpoint: 1000,
       child: Scaffold(
         appBar: AppBar(
-          title: const Text("Talk"),
+          title: const Text('Talk'),
           actions: [
             IconButton(
               icon: const Icon(Icons.search),
@@ -91,16 +91,16 @@ class _ChatListState extends State<ChatList> {
           ],
         ),
         floatingActionButton: FloatingActionButton(
-          heroTag: "createChat",
+          heroTag: 'createChat',
           backgroundColor: Theme.of(context).primaryColor,
           onPressed: () async {
             showSearch(context: context, delegate: JoinChat()).then((username) {
               if(username == null) return;
 
               ConfirmDialog(
-                title: "Chat starten",
+                title: 'Chat starten',
                 content: "Möchtest du einen Chat mit Nutzer '$username' starten?",
-                confirmButton: "Chat starten",
+                confirmButton: 'Chat starten',
                 onConfirm: () {
                   CreateRoom(CreateRoomParams(
                     roomType: 1,
diff --git a/lib/view/pages/talk/chatView.dart b/lib/view/pages/talk/chatView.dart
index e27ebf0..4931187 100644
--- a/lib/view/pages/talk/chatView.dart
+++ b/lib/view/pages/talk/chatView.dart
@@ -1,6 +1,6 @@
 
 import 'package:flutter/material.dart';
-import 'package:marianum_mobile/extensions/dateTime.dart';
+import '../../../extensions/dateTime.dart';
 import 'package:provider/provider.dart';
 
 import '../../../api/marianumcloud/talk/chat/getChatResponse.dart';
@@ -51,8 +51,8 @@ class _ChatViewState extends State<ChatView> {
           data.getChatResponse.sortByTimestamp().forEach((element) {
             DateTime elementDate = DateTime.fromMillisecondsSinceEpoch(element.timestamp * 1000);
 
-            if(element.systemMessage.contains("reaction")) return;
-            int commonRead = int.parse(data.getChatResponse.headers?['x-chat-last-common-read'] ?? "0");
+            if(element.systemMessage.contains('reaction')) return;
+            int commonRead = int.parse(data.getChatResponse.headers?['x-chat-last-common-read'] ?? '0');
 
             if(!elementDate.isSameDay(lastDate)) {
               lastDate = elementDate;
@@ -81,8 +81,8 @@ class _ChatViewState extends State<ChatView> {
               context: context,
               isSender: false,
               bubbleData: GetChatResponseObject.getTextDummy(
-                  "Zurzeit können in dieser App nur die letzten 200 vergangenen Nachrichten angezeigt werden. "
-                  "Um ältere Nachrichten abzurufen verwende die Webversion unter https://cloud.marianum-fulda.de"
+                  'Zurzeit können in dieser App nur die letzten 200 vergangenen Nachrichten angezeigt werden. '
+                  'Um ältere Nachrichten abzurufen verwende die Webversion unter https://cloud.marianum-fulda.de'
               ),
               chatData: widget.room,
               refetch: _query,
@@ -111,7 +111,7 @@ class _ChatViewState extends State<ChatView> {
           body: Container(
             decoration: BoxDecoration(
               image: DecorationImage(
-                image: const AssetImage("assets/background/chat.png"),
+                image: const AssetImage('assets/background/chat.png'),
                 scale: 1.5,
                 opacity: 1,
                 repeat: ImageRepeat.repeat,
diff --git a/lib/view/pages/talk/components/chatBubble.dart b/lib/view/pages/talk/components/chatBubble.dart
index 9f94aec..0c902db 100644
--- a/lib/view/pages/talk/components/chatBubble.dart
+++ b/lib/view/pages/talk/components/chatBubble.dart
@@ -5,7 +5,7 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:jiffy/jiffy.dart';
-import 'package:marianum_mobile/extensions/text.dart';
+import '../../../../extensions/text.dart';
 import 'package:provider/provider.dart';
 
 import '../../../../api/marianumcloud/talk/chat/getChatResponse.dart';
@@ -114,7 +114,7 @@ class _ChatBubbleState extends State<ChatBubble> {
     );
 
     Text timeText = Text(
-      Jiffy.parseFromMillisecondsSinceEpoch(widget.bubbleData.timestamp * 1000).format(pattern: "HH:mm"),
+      Jiffy.parseFromMillisecondsSinceEpoch(widget.bubbleData.timestamp * 1000).format(pattern: 'HH:mm'),
       textAlign: TextAlign.end,
       style: TextStyle(color: widget.timeIconColor, fontSize: widget.timeIconSize),
     );
@@ -184,7 +184,7 @@ class _ChatBubbleState extends State<ChatBubble> {
           ),
           onLongPress: () {
             showDialog(context: context, builder: (context) {
-              List<String> commonReactions = ["👍", "👎", "😆", "❤️", "👀", "🤔"];
+              List<String> commonReactions = ['👍', '👎', '😆', '❤️', '👀', '🤔'];
               bool canReact = widget.bubbleData.messageType == GetRoomResponseObjectMessageType.comment;
               return SimpleDialog(
                 children: [
@@ -222,7 +222,7 @@ class _ChatBubbleState extends State<ChatBubble> {
                     visible: canReact,
                     child: ListTile(
                       leading: const Icon(Icons.add_reaction_outlined),
-                      title: const Text("Reaktionen"),
+                      title: const Text('Reaktionen'),
                       onTap: () {
                         Navigator.of(context).push(MaterialPageRoute(builder: (context) => MessageReactions(
                           token: widget.chatData.token,
@@ -235,7 +235,7 @@ class _ChatBubbleState extends State<ChatBubble> {
                     visible: !message.containsFile,
                     child: ListTile(
                       leading: const Icon(Icons.copy),
-                      title: const Text("Nachricht kopieren"),
+                      title: const Text('Nachricht kopieren'),
                       onTap: () => {
                         Clipboard.setData(ClipboardData(text: widget.bubbleData.message)),
                         Navigator.of(context).pop(),
@@ -256,7 +256,7 @@ class _ChatBubbleState extends State<ChatBubble> {
                     visible: widget.isSender && DateTime.fromMillisecondsSinceEpoch(widget.bubbleData.timestamp * 1000).add(const Duration(hours: 6)).isAfter(DateTime.now()),
                     child: ListTile(
                       leading: const Icon(Icons.delete_outline),
-                      title: const Text("Nachricht löschen"),
+                      title: const Text('Nachricht löschen'),
                       onTap: () {
                         DeleteMessage(widget.chatData.token, widget.bubbleData.id).run().then((value) {
                           Provider.of<ChatProps>(context, listen: false).run();
@@ -276,12 +276,12 @@ class _ChatBubbleState extends State<ChatBubble> {
             if(downloadProgress > 0) {
               showDialog(context: context, builder: (context) {
                 return AlertDialog(
-                  title: const Text("Download abbrechen?"),
-                  content: const Text("Möchtest du den Download abbrechen?"),
+                  title: const Text('Download abbrechen?'),
+                  content: const Text('Möchtest du den Download abbrechen?'),
                   actions: [
                     TextButton(onPressed: () {
                       Navigator.of(context).pop();
-                    }, child: const Text("Nein")),
+                    }, child: const Text('Nein')),
                     TextButton(onPressed: () {
                       downloadCore?.then((value) {
                         if(!value.isCancelled) value.cancel();
@@ -291,7 +291,7 @@ class _ChatBubbleState extends State<ChatBubble> {
                         downloadProgress = 0;
                         downloadCore = null;
                       });
-                    }, child: const Text("Ja, Abbrechen"))
+                    }, child: const Text('Ja, Abbrechen'))
                   ],
                 );
               });
@@ -336,7 +336,7 @@ class _ChatBubbleState extends State<ChatBubble> {
                   return Container(
                     margin: const EdgeInsets.only(right: 2.5, left: 2.5),
                     child: ActionChip(
-                      label: Text("${e.key} ${e.value}"),
+                      label: Text('${e.key} ${e.value}'),
                       visualDensity: const VisualDensity(vertical: VisualDensity.minimumDensity, horizontal: VisualDensity.minimumDensity),
                       padding: EdgeInsets.zero,
                       backgroundColor: hasSelfReacted ? Theme.of(context).primaryColor : null,
diff --git a/lib/view/pages/talk/components/chatMessage.dart b/lib/view/pages/talk/components/chatMessage.dart
index c45f86c..4b72500 100644
--- a/lib/view/pages/talk/components/chatMessage.dart
+++ b/lib/view/pages/talk/components/chatMessage.dart
@@ -14,14 +14,14 @@ class ChatMessage {
   Map<String, RichObjectString>? originalData;
 
   RichObjectString? file;
-  String content = "";
+  String content = '';
 
   bool get containsFile => file != null;
 
   ChatMessage({required this.originalMessage, this.originalData}) {
-    if(originalData?.containsKey("file") ?? false) {
+    if(originalData?.containsKey('file') ?? false) {
       file = originalData?['file'];
-      content = file?.name ?? "Datei";
+      content = file?.name ?? 'Datei';
     } else {
       content = RichObjectStringProcessor.parseToString(originalMessage, originalData);
     }
@@ -56,7 +56,7 @@ class ChatMessage {
       fadeInDuration: Duration.zero,
       fadeOutDuration: Duration.zero,
       errorListener: (value) {},
-      imageUrl: "https://${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().full()}/index.php/core/preview?fileId=${file!.id}&x=100&y=-1&a=1",
+      imageUrl: 'https://${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().full()}/index.php/core/preview?fileId=${file!.id}&x=100&y=-1&a=1',
     );
   }
 
diff --git a/lib/view/pages/talk/components/chatTextfield.dart b/lib/view/pages/talk/components/chatTextfield.dart
index 9dc14e7..1ec6b68 100644
--- a/lib/view/pages/talk/components/chatTextfield.dart
+++ b/lib/view/pages/talk/components/chatTextfield.dart
@@ -41,9 +41,9 @@ class _ChatTextfieldState extends State<ChatTextfield> {
     }
 
     String filename = "${path.split("/").last.split(".").first}-${const Uuid().v4()}.${path.split(".").last}";
-    String shareFolder = "MarianumMobile";
+    String shareFolder = 'MarianumMobile';
     WebdavApi.webdav.then((webdav) {
-      webdav.mkcol(PathUri.parse("/$shareFolder"));
+      webdav.mkcol(PathUri.parse('/$shareFolder'));
     });
 
     showDialog(context: context, builder: (context) => FileUploadDialog(
@@ -55,7 +55,7 @@ class _ChatTextfieldState extends State<ChatTextfield> {
         FileSharingApi().share(FileSharingApiParams(
           shareType: 10,
           shareWith: widget.sendToToken,
-          path: "$shareFolder/$filename",
+          path: '$shareFolder/$filename',
         )).then((value) => _query());
       },
     ), barrierDismissible: false);
@@ -77,7 +77,7 @@ class _ChatTextfieldState extends State<ChatTextfield> {
 
   @override
   Widget build(BuildContext context) {
-    _textBoxController.text = settings.val().talkSettings.drafts[widget.sendToToken] ?? "";
+    _textBoxController.text = settings.val().talkSettings.drafts[widget.sendToToken] ?? '';
 
     return Stack(
       children: <Widget>[
@@ -95,12 +95,10 @@ class _ChatTextfieldState extends State<ChatTextfield> {
                         children: [
                           ListTile(
                             leading: const Icon(Icons.file_open),
-                            title: const Text("Aus Dateien auswählen"),
+                            title: const Text('Aus Dateien auswählen'),
                             onTap: () {
                               context.loaderOverlay.show();
-                              FilePick.documentPick().then((value) {
-                                mediaUpload(value);
-                              });
+                              FilePick.documentPick().then(mediaUpload);
                               Navigator.of(context).pop();
                             },
                           ),
@@ -108,7 +106,7 @@ class _ChatTextfieldState extends State<ChatTextfield> {
                             visible: !Platform.isIOS,
                             child: ListTile(
                               leading: const Icon(Icons.image),
-                              title: const Text("Aus Gallerie auswählen"),
+                              title: const Text('Aus Gallerie auswählen'),
                               onTap: () {
                                 context.loaderOverlay.show();
                                 FilePick.galleryPick().then((value) {
@@ -147,12 +145,12 @@ class _ChatTextfieldState extends State<ChatTextfield> {
                     maxLines: 7,
                     minLines: 1,
                     decoration: const InputDecoration(
-                      hintText: "Nachricht schreiben...",
+                      hintText: 'Nachricht schreiben...',
                       border: InputBorder.none,
                     ),
                     onChanged: (String text) {
-                      if(text.trim().toLowerCase() == "marbot marbot marbot") {
-                        var newText = "Roboter sind cool und so, aber Marbots sind besser!";
+                      if(text.trim().toLowerCase() == 'marbot marbot marbot') {
+                        var newText = 'Roboter sind cool und so, aber Marbots sind besser!';
                         _textBoxController.text = newText;
                         text = newText;
                       }
@@ -175,8 +173,8 @@ class _ChatTextfieldState extends State<ChatTextfield> {
                       setState(() {
                         isLoading = false;
                       });
-                      _textBoxController.text = "";
-                      setDraft("");
+                      _textBoxController.text = '';
+                      setDraft('');
                     });
                   },
                   backgroundColor: Theme.of(context).primaryColor,
diff --git a/lib/view/pages/talk/components/chatTile.dart b/lib/view/pages/talk/components/chatTile.dart
index 5dac10b..e1e4dba 100644
--- a/lib/view/pages/talk/components/chatTile.dart
+++ b/lib/view/pages/talk/components/chatTile.dart
@@ -37,7 +37,7 @@ class _ChatTileState extends State<ChatTile> {
   void initState() {
     super.initState();
     SharedPreferences.getInstance().then((value) => {
-      username = value.getString("username")!
+      username = value.getString('username')!
     });
 
     bool isGroup = widget.data.type != GetRoomResponseObjectConversationType.oneToOne;
@@ -110,7 +110,7 @@ class _ChatTileState extends State<ChatTile> {
             minHeight: 20,
           ),
           child: Text(
-            "${widget.data.unreadMessages}",
+            '${widget.data.unreadMessages}',
             style: const TextStyle(
               color: Colors.white,
               fontSize: 15,
@@ -132,7 +132,7 @@ class _ChatTileState extends State<ChatTile> {
                 visible: widget.data.unreadMessages > 0,
                 replacement: ListTile(
                   leading: const Icon(Icons.mark_chat_unread_outlined),
-                  title: const Text("Als ungelesen markieren"),
+                  title: const Text('Als ungelesen markieren'),
                   onTap: () {
                     SetReadMarker(widget.data.token, false).run().then((value) => widget.query(renew: true));
                     Navigator.of(context).pop();
@@ -140,7 +140,7 @@ class _ChatTileState extends State<ChatTile> {
                 ),
                 child: ListTile(
                   leading: const Icon(Icons.mark_chat_read_outlined),
-                  title: const Text("Als gelesen markieren"),
+                  title: const Text('Als gelesen markieren'),
                   onTap: () {
                     setCurrentAsRead();
                     Navigator.of(context).pop();
@@ -151,7 +151,7 @@ class _ChatTileState extends State<ChatTile> {
                 visible: widget.data.isFavorite,
                 replacement: ListTile(
                   leading: const Icon(Icons.star_outline),
-                  title: const Text("Zu Favoriten hinzufügen"),
+                  title: const Text('Zu Favoriten hinzufügen'),
                   onTap: () {
                     SetFavorite(widget.data.token, true).run().then((value) => widget.query(renew: true));
                     Navigator.of(context).pop();
@@ -159,7 +159,7 @@ class _ChatTileState extends State<ChatTile> {
                 ),
                 child: ListTile(
                   leading: const Icon(Icons.stars_outlined),
-                  title: const Text("Von Favoriten entfernen"),
+                  title: const Text('Von Favoriten entfernen'),
                   onTap: () {
                     SetFavorite(widget.data.token, false).run().then((value) => widget.query(renew: true));
                     Navigator.of(context).pop();
@@ -168,12 +168,12 @@ class _ChatTileState extends State<ChatTile> {
               ),
               ListTile(
                 leading: const Icon(Icons.delete_outline),
-                title: const Text("Konversation verlassen"),
+                title: const Text('Konversation verlassen'),
                 onTap: () {
                   ConfirmDialog(
-                    title: "Chat verlassen",
-                    content: "Du benötigst ggf. eine Einladung um erneut beizutreten.",
-                    confirmButton: "Löschen",
+                    title: 'Chat verlassen',
+                    content: 'Du benötigst ggf. eine Einladung um erneut beizutreten.',
+                    confirmButton: 'Löschen',
                     onConfirm: () {
                       LeaveRoom(widget.data.token).run().then((value) => widget.query(renew: true));
                       Navigator.of(context).pop();
diff --git a/lib/view/pages/talk/components/splitViewPlaceholder.dart b/lib/view/pages/talk/components/splitViewPlaceholder.dart
index 12be950..29d8473 100644
--- a/lib/view/pages/talk/components/splitViewPlaceholder.dart
+++ b/lib/view/pages/talk/components/splitViewPlaceholder.dart
@@ -17,10 +17,10 @@ class SplitViewPlaceholder extends StatelessWidget {
               data: MediaQuery.of(context).copyWith(
                 invertColors: !AppTheme.isDarkMode(context),
               ),
-              child: Image.asset("assets/logo/icon.png", height: 200),
+              child: Image.asset('assets/logo/icon.png', height: 200),
             ),
             const SizedBox(height: 30),
-            const Text("Marianum Fulda\nTalk", textAlign: TextAlign.center, style: TextStyle(fontSize: 30)),
+            const Text('Marianum Fulda\nTalk', textAlign: TextAlign.center, style: TextStyle(fontSize: 30)),
           ],
         ),
       )
diff --git a/lib/view/pages/talk/joinChat.dart b/lib/view/pages/talk/joinChat.dart
index 94a6bc0..f629ff9 100644
--- a/lib/view/pages/talk/joinChat.dart
+++ b/lib/view/pages/talk/joinChat.dart
@@ -33,7 +33,7 @@ class JoinChat extends SearchDelegate<String> {
           return const SizedBox.shrink();
         },
       ),
-      if(query.isNotEmpty) IconButton(onPressed: () => query = "", icon: const Icon(Icons.delete)),
+      if(query.isNotEmpty) IconButton(onPressed: () => query = '', icon: const Icon(Icons.delete)),
     ];
   }
 
@@ -48,7 +48,7 @@ class JoinChat extends SearchDelegate<String> {
 
     if(query.isEmpty) {
       return const PlaceholderView(
-        text: "Suche nach benutzern",
+        text: 'Suche nach benutzern',
         icon: Icons.person_search_outlined,
       );
     }
@@ -63,7 +63,7 @@ class JoinChat extends SearchDelegate<String> {
             itemBuilder: (context, index) {
               AutocompleteResponseObject object = snapshot.data!.data[index];
               CircleAvatar circleAvatar = CircleAvatar(
-                foregroundImage: Image.network("https://${EndpointData().nextcloud().full()}/avatar/${object.id}/128").image,
+                foregroundImage: Image.network('https://${EndpointData().nextcloud().full()}/avatar/${object.id}/128').image,
                 backgroundColor: Theme.of(context).primaryColor,
                 foregroundColor: Colors.white,
                 child: const Icon(Icons.person),
@@ -80,7 +80,7 @@ class JoinChat extends SearchDelegate<String> {
             }
           );
         } else if(snapshot.hasError) {
-          return const PlaceholderView(icon: Icons.search_off, text: "Ein fehler ist aufgetreten. Bist du mit dem Internet verbunden?");
+          return const PlaceholderView(icon: Icons.search_off, text: 'Ein fehler ist aufgetreten. Bist du mit dem Internet verbunden?');
         }
 
         return const Center(child: CircularProgressIndicator());
diff --git a/lib/view/pages/talk/messageReactions.dart b/lib/view/pages/talk/messageReactions.dart
index 96e3a07..592ef29 100644
--- a/lib/view/pages/talk/messageReactions.dart
+++ b/lib/view/pages/talk/messageReactions.dart
@@ -33,13 +33,13 @@ class _MessageReactionsState extends State<MessageReactions> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Reaktionen"),
+        title: const Text('Reaktionen'),
       ),
       body: FutureBuilder(
         future: data,
         builder: (context, snapshot) {
           if(snapshot.connectionState == ConnectionState.waiting) return const LoadingSpinner();
-          if(snapshot.data == null) return const PlaceholderView(icon: Icons.search_off_outlined, text: "Keine Reaktionen gefunden!");
+          if(snapshot.data == null) return const PlaceholderView(icon: Icons.search_off_outlined, text: 'Keine Reaktionen gefunden!');
           return ListView(
             children: [
               ...snapshot.data!.data.entries.map<Widget>((entry) {
@@ -49,17 +49,17 @@ class _MessageReactionsState extends State<MessageReactions> {
                   iconColor: Theme.of(context).colorScheme.onSurface,
                   collapsedIconColor: Theme.of(context).colorScheme.onSurface,
 
-                  subtitle: const Text("Tippe für mehr"),
+                  subtitle: const Text('Tippe für mehr'),
                   leading: CenteredLeading(Text(entry.key)),
-                  title: Text("${entry.value.length} mal reagiert"),
+                  title: Text('${entry.value.length} mal reagiert'),
                   children: entry.value.map((e) {
                     bool isSelf = AccountData().getUsername() == e.actorId;
                     return ListTile(
                       leading: UserAvatar(id: e.actorId, isGroup: false),
                       title: Text(e.actorDisplayName),
                       subtitle: isSelf
-                        ? const Text("Du")
-                        : e.actorType == GetReactionsResponseObjectActorType.guests ? const Text("Gast") : null,
+                        ? const Text('Du')
+                        : e.actorType == GetReactionsResponseObjectActorType.guests ? const Text('Gast') : null,
                       trailing: isSelf
                         ? null
                         : Visibility(
diff --git a/lib/view/pages/talk/searchChat.dart b/lib/view/pages/talk/searchChat.dart
index 6b3a4d9..39bdd56 100644
--- a/lib/view/pages/talk/searchChat.dart
+++ b/lib/view/pages/talk/searchChat.dart
@@ -11,7 +11,7 @@ class SearchChat extends SearchDelegate {
   @override
   List<Widget>? buildActions(BuildContext context) {
     return [
-      if(query.isNotEmpty) IconButton(onPressed: () => query = "", icon: const Icon(Icons.delete)),
+      if(query.isNotEmpty) IconButton(onPressed: () => query = '', icon: const Icon(Icons.delete)),
     ];
   }
 
diff --git a/lib/view/pages/timetable/appointmenetComponent.dart b/lib/view/pages/timetable/appointmenetComponent.dart
index cddb13e..6db2a72 100644
--- a/lib/view/pages/timetable/appointmenetComponent.dart
+++ b/lib/view/pages/timetable/appointmenetComponent.dart
@@ -53,7 +53,7 @@ class _AppointmentComponentState extends State<AppointmentComponent> {
                     FittedBox(
                       fit: BoxFit.fitWidth,
                       child: Text(
-                        (meeting.location == null || meeting.location!.isEmpty ? " " : meeting.location!),
+                        (meeting.location == null || meeting.location!.isEmpty ? ' ' : meeting.location!),
                         maxLines: 3,
                         overflow: TextOverflow.ellipsis,
                         softWrap: true,
diff --git a/lib/view/pages/timetable/appointmentDetails.dart b/lib/view/pages/timetable/appointmentDetails.dart
index 29b544c..43f9663 100644
--- a/lib/view/pages/timetable/appointmentDetails.dart
+++ b/lib/view/pages/timetable/appointmentDetails.dart
@@ -27,9 +27,9 @@ import 'customTimetableEventEditDialog.dart';
 
 class AppointmentDetails {
   static String _getEventPrefix(String? code) {
-    if(code == "cancelled") return "Entfällt: ";
-    if(code == "irregular") return "Änderung: ";
-    return code ?? "";
+    if(code == 'cancelled') return 'Entfällt: ';
+    if(code == 'irregular') return 'Änderung: ';
+    return code ?? '';
   }
 
   static void show(BuildContext context, TimetableProps webuntisData, Appointment appointment) {
@@ -65,13 +65,13 @@ class AppointmentDetails {
     try {
       subject = webuntisData.getSubjectsResponse.result.firstWhere((subject) => subject.id == timetableData.su[0].id);
     } catch(e) {
-      subject = GetSubjectsResponseObject(0, "?", "Unbekannt", "?", true);
+      subject = GetSubjectsResponseObject(0, '?', 'Unbekannt', '?', true);
     }
 
     try {
       room = webuntisData.getRoomsResponse.result.firstWhere((room) => room.id == timetableData.ro[0].id);
     } catch(e) {
-      room = GetRoomsResponseObject(0, "?", "Unbekannt", true, "?");
+      room = GetRoomsResponseObject(0, '?', 'Unbekannt', true, '?');
     }
 
     _bottomSheet(
@@ -99,7 +99,7 @@ class AppointmentDetails {
             ),
             ListTile(
               leading: const Icon(Icons.room),
-              title: Text("Raum: ${room.name} (${room.longName})"),
+              title: Text('Raum: ${room.name} (${room.longName})'),
               trailing: IconButton(
                 icon: const Icon(Icons.house_outlined),
                 onPressed: () {
@@ -111,7 +111,7 @@ class AppointmentDetails {
               leading: const Icon(Icons.person),
               title: timetableData.te.isNotEmpty
                   ? Text("Lehrkraft: ${timetableData.te[0].name} ${timetableData.te[0].longname.isNotEmpty ? "(${timetableData.te[0].longname})" : ""}")
-                  : const Text("?"),
+                  : const Text('?'),
               trailing: Visibility(
                 visible: !kReleaseMode,
                 child: IconButton(
@@ -124,7 +124,7 @@ class AppointmentDetails {
             ),
             ListTile(
               leading: const Icon(Icons.abc),
-              title: Text("Typ: ${timetableData.activityType}"),
+              title: Text('Typ: ${timetableData.activityType}'),
             ),
             ListTile(
               leading: const Icon(Icons.people),
@@ -140,9 +140,9 @@ class AppointmentDetails {
   static Completer deleteCustomEvent(BuildContext context, CustomTimetableEvent appointment) {
     Completer future = Completer();
     ConfirmDialog(
-      title: "Termin löschen",
+      title: 'Termin löschen',
       content: "Der ${appointment.rrule.isEmpty ? "Termin" : "Serientermin"} wird unwiederruflich gelöscht.",
-      confirmButton: "Löschen",
+      confirmButton: 'Löschen',
       onConfirm: () {
         RemoveCustomTimetableEvent(
             RemoveCustomTimetableEventParams(
@@ -186,14 +186,14 @@ class AppointmentDetails {
                         builder: (context) => CustomTimetableEventEditDialog(existingEvent: appointment),
                       );
                     },
-                    label: const Text("Bearbeiten"),
+                    label: const Text('Bearbeiten'),
                     icon: const Icon(Icons.edit_outlined),
                   ),
                   TextButton.icon(
                     onPressed: () {
                       deleteCustomEvent(context, appointment).future.then((value) => Navigator.of(context).pop());
                     },
-                    label: const Text("Löschen"),
+                    label: const Text('Löschen'),
                     icon: const Icon(Icons.delete_outline),
                   ),
                 ],
@@ -202,7 +202,7 @@ class AppointmentDetails {
             const Divider(),
             ListTile(
               leading: const Icon(Icons.info_outline),
-              title: Text(appointment.description.isEmpty ? "Keine Beschreibung" : appointment.description),
+              title: Text(appointment.description.isEmpty ? 'Keine Beschreibung' : appointment.description),
             ),
             ListTile(
               leading: const CenteredLeading(Icon(Icons.repeat_outlined)),
@@ -210,10 +210,10 @@ class AppointmentDetails {
               subtitle: FutureBuilder(
                 future: RruleL10nEn.create(),
                 builder: (context, snapshot) {
-                  if(appointment.rrule.isEmpty) return const Text("Keine weiteren vorkomnisse");
-                  if(snapshot.data == null) return const Text("...");
+                  if(appointment.rrule.isEmpty) return const Text('Keine weiteren vorkomnisse');
+                  if(snapshot.data == null) return const Text('...');
                   RecurrenceRule rrule = RecurrenceRule.fromString(appointment.rrule);
-                  if(!rrule.canFullyConvertToText) return const Text("Keine genauere Angabe möglich.");
+                  if(!rrule.canFullyConvertToText) return const Text('Keine genauere Angabe möglich.');
                   return Text(rrule.toText(l10n: snapshot.data!));
                 },
               )
@@ -221,8 +221,8 @@ class AppointmentDetails {
             DebugTile(context).child(
               ListTile(
                 leading: const CenteredLeading(Icon(Icons.rule)),
-                title: const Text("RRule"),
-                subtitle: Text(appointment.rrule.isEmpty ? "Keine" : appointment.rrule),
+                title: const Text('RRule'),
+                subtitle: Text(appointment.rrule.isEmpty ? 'Keine' : appointment.rrule),
               )
             ),
             DebugTile(context).jsonData(appointment.toJson()),
diff --git a/lib/view/pages/timetable/customTimetableColors.dart b/lib/view/pages/timetable/customTimetableColors.dart
index 060bf0c..15d5231 100644
--- a/lib/view/pages/timetable/customTimetableColors.dart
+++ b/lib/view/pages/timetable/customTimetableColors.dart
@@ -15,16 +15,16 @@ class TimetableColors {
   static ColorModeDisplay getDisplayOptions(CustomTimetableColors color) {
     switch(color) {
       case CustomTimetableColors.green:
-        return ColorModeDisplay(color: Colors.green, displayName: "Grün");
+        return ColorModeDisplay(color: Colors.green, displayName: 'Grün');
 
       case CustomTimetableColors.blue:
-        return ColorModeDisplay(color: Colors.blue, displayName: "Blau");
+        return ColorModeDisplay(color: Colors.blue, displayName: 'Blau');
 
       case CustomTimetableColors.orange:
-        return ColorModeDisplay(color: Colors.orange.shade800, displayName: "Orange");
+        return ColorModeDisplay(color: Colors.orange.shade800, displayName: 'Orange');
 
       case CustomTimetableColors.red:
-        return ColorModeDisplay(color: DarkAppTheme.marianumRed, displayName: "Rot");
+        return ColorModeDisplay(color: DarkAppTheme.marianumRed, displayName: 'Rot');
 
     }
   }
diff --git a/lib/view/pages/timetable/customTimetableEventEditDialog.dart b/lib/view/pages/timetable/customTimetableEventEditDialog.dart
index c25fd82..02844f3 100644
--- a/lib/view/pages/timetable/customTimetableEventEditDialog.dart
+++ b/lib/view/pages/timetable/customTimetableEventEditDialog.dart
@@ -3,7 +3,7 @@ import 'dart:developer';
 
 import 'package:flutter/material.dart';
 import 'package:jiffy/jiffy.dart';
-import 'package:marianum_mobile/extensions/dateTime.dart';
+import '../../../extensions/dateTime.dart';
 import 'package:provider/provider.dart';
 import 'package:rrule_generator/rrule_generator.dart';
 import 'package:time_range_picker/time_range_picker.dart';
@@ -32,7 +32,7 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
   late TimeOfDay _endTime = widget.existingEvent?.endDate.toTimeOfDay() ?? const TimeOfDay(hour: 09, minute: 30);
   late final TextEditingController _eventName = TextEditingController(text: widget.existingEvent?.title);
   late final TextEditingController _eventDescription = TextEditingController(text: widget.existingEvent?.description);
-  late String _recurringRule = widget.existingEvent?.rrule ?? "";
+  late String _recurringRule = widget.existingEvent?.rrule ?? '';
   late CustomTimetableColors _customTimetableColor = CustomTimetableColors.values.firstWhere(
     (element) => element.name == widget.existingEvent?.color,
     orElse: () => TimetableColors.defaultColor
@@ -64,7 +64,7 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
                 controller: _eventName,
                 autofocus: true,
                 decoration: const InputDecoration(
-                  labelText: "Terminname",
+                  labelText: 'Terminname',
                   border: OutlineInputBorder()
                 ),
               ),
@@ -75,7 +75,7 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
                 maxLines: 2,
                 minLines: 2,
                 decoration: const InputDecoration(
-                  labelText: "Beschreibung",
+                  labelText: 'Beschreibung',
                   border: OutlineInputBorder()
                 ),
               ),
@@ -84,7 +84,7 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
             ListTile(
               leading: const Icon(Icons.date_range_outlined),
               title: Text(Jiffy.parseFromDateTime(_date).yMMMd),
-              subtitle: const Text("Datum"),
+              subtitle: const Text('Datum'),
               onTap: () async {
                 final DateTime? pickedDate = await showDatePicker(
                   context: context,
@@ -101,8 +101,8 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
             ),
             ListTile(
               leading: const Icon(Icons.access_time_outlined),
-              title: Text("${_startTime.format(context).toString()} - ${_endTime.format(context).toString()}"),
-              subtitle: const Text("Zeitraum"),
+              title: Text('${_startTime.format(context).toString()} - ${_endTime.format(context).toString()}'),
+              subtitle: const Text('Zeitraum'),
               onTap: () async {
                 TimeRange timeRange = await showTimeRangePicker(
                   context: context,
@@ -112,8 +112,8 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
                   disabledColor: Colors.grey,
                   paintingStyle: PaintingStyle.fill,
                   interval: const Duration(minutes: 5),
-                  fromText: "Beginnend",
-                  toText: "Endend",
+                  fromText: 'Beginnend',
+                  toText: 'Endend',
                   strokeColor: Theme.of(context).colorScheme.secondary,
                   minDuration: const Duration(minutes: 15),
                   selectedColor: Theme.of(context).primaryColor,
@@ -129,7 +129,7 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
             const Divider(),
             ListTile(
               leading: const Icon(Icons.color_lens_outlined),
-              title: const Text("Farbgebung"),
+              title: const Text('Farbgebung'),
               trailing: DropdownButton<CustomTimetableColors>(
                 value: _customTimetableColor,
                 icon: const Icon(Icons.arrow_drop_down),
@@ -162,7 +162,7 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
               initialRRule: _recurringRule,
               textDelegate: const GermanRRuleTextDelegate(),
               onChange: (String newValue) {
-                log("Rule: $newValue");
+                log('Rule: $newValue');
                 setState(() {
                   _recurringRule = newValue;
                 });
@@ -183,7 +183,7 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
             if(!validate()) return;
 
             CustomTimetableEvent editedEvent = CustomTimetableEvent(
-              id: "",
+              id: '',
               title: _eventName.text,
               description: _eventDescription.text,
               startDate: _date.withTime(_startTime),
@@ -210,7 +210,7 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
             } else {
               UpdateCustomTimetableEvent(
                 UpdateCustomTimetableEventParams(
-                  widget.existingEvent?.id ?? "",
+                  widget.existingEvent?.id ?? '',
                   editedEvent
                 )
               ).run().then((value) {
@@ -224,7 +224,7 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
 
 
           },
-          child: Text(isEditingExisting ? "Speichern" : "Erstellen"),
+          child: Text(isEditingExisting ? 'Speichern' : 'Erstellen'),
         ),
       ],
     );
diff --git a/lib/view/pages/timetable/timeRegionComponent.dart b/lib/view/pages/timetable/timeRegionComponent.dart
index e472d94..8d03f50 100644
--- a/lib/view/pages/timetable/timeRegionComponent.dart
+++ b/lib/view/pages/timetable/timeRegionComponent.dart
@@ -33,12 +33,12 @@ class _TimeRegionComponentState extends State<TimeRegionComponent> {
           children: [
             const SizedBox(height: 15),
             const Icon(Icons.cake),
-            const Text("FREI"),
+            const Text('FREI'),
             const SizedBox(height: 10),
             RotatedBox(
               quarterTurns: 1,
               child: Text(
-                text.split(":").last,
+                text.split(':').last,
                 maxLines: 1,
                 style: const TextStyle(
                   fontWeight: FontWeight.bold,
diff --git a/lib/view/pages/timetable/timetable.dart b/lib/view/pages/timetable/timetable.dart
index c7068fb..b3b7034 100644
--- a/lib/view/pages/timetable/timetable.dart
+++ b/lib/view/pages/timetable/timetable.dart
@@ -2,7 +2,7 @@
 import 'dart:async';
 
 import 'package:flutter/material.dart';
-import 'package:marianum_mobile/extensions/dateTime.dart';
+import '../../../extensions/dateTime.dart';
 import 'package:provider/provider.dart';
 import 'package:syncfusion_flutter_calendar/calendar.dart';
 
@@ -57,7 +57,7 @@ class _TimetableState extends State<Timetable> {
 
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Stunden & Vertretungsplan"),
+        title: const Text('Stunden & Vertretungsplan'),
         actions: [
           IconButton(
               icon: const Icon(Icons.home_outlined),
@@ -74,11 +74,11 @@ class _TimetableState extends State<Timetable> {
                   Icon icon;
                   switch(e) {
                     case CalendarActions.addEvent:
-                      title = "Kalendereintrag hinzufügen";
+                      title = 'Kalendereintrag hinzufügen';
                       icon = const Icon(Icons.add);
                     case CalendarActions.viewEvents:
                     default:
-                      title = "Kalendereinträge anzeigen";
+                      title = 'Kalendereinträge anzeigen';
                       icon = const Icon(Icons.perm_contact_calendar_outlined);
                   }
                   return PopupMenuItem<CalendarActions>(
@@ -112,9 +112,9 @@ class _TimetableState extends State<Timetable> {
           if(value.hasError) {
             return PlaceholderView(
               icon: Icons.calendar_month,
-              text: "Webuntis error: ${value.error.toString()}",
+              text: 'Webuntis error: ${value.error.toString()}',
               button: TextButton(
-                child: const Text("Neu laden"),
+                child: const Text('Neu laden'),
                 onPressed: () {
                   controller.displayDate = DateTime.now().add(const Duration(days: 2));
                   Provider.of<TimetableProps>(context, listen: false).resetWeek();
@@ -155,8 +155,8 @@ class _TimetableState extends State<Timetable> {
                   startHour: 07.5,
                   endHour: 16.5,
                   timeInterval: Duration(minutes: 30),
-                  timeFormat: "HH:mm",
-                  dayFormat: "EE",
+                  timeFormat: 'HH:mm',
+                  dayFormat: 'EE',
                   timeIntervalHeight: 40,
                 ),
 
@@ -259,10 +259,10 @@ class _TimetableState extends State<Timetable> {
           startTime: startTime,
           endTime: endTime,
           subject: subjects.result.firstWhere((subject) => subject.id == element.su[0].id).name,
-          location: ""
-              "${rooms.result.firstWhere((room) => room.id == element.ro[0].id).name}"
-              "\n"
-              "${element.te.first.longname}",
+          location: ''
+              '${rooms.result.firstWhere((room) => room.id == element.ro[0].id).name}'
+              '\n'
+              '${element.te.first.longname}',
           notes: element.activityType,
           color: _getEventColor(element, startTime, endTime),
         );
@@ -272,7 +272,7 @@ class _TimetableState extends State<Timetable> {
           id: ArbitraryAppointment(webuntis: element),
           startTime: _parseWebuntisTimestamp(element.date, element.startTime),
           endTime: endTime,
-          subject: "Änderung",
+          subject: 'Änderung',
           notes: element.info,
           location: 'Unbekannt',
           color: endTime.isBefore(DateTime.now()) ? Theme.of(context).primaryColor.withAlpha(100) : Theme.of(context).primaryColor,
@@ -309,10 +309,10 @@ class _TimetableState extends State<Timetable> {
     int alpha = endTime.isBefore(DateTime.now()) ? 100 : 255;
 
     // Cancelled
-    if(webuntisElement.code == "cancelled") return const Color(0xff000000).withAlpha(alpha);
+    if(webuntisElement.code == 'cancelled') return const Color(0xff000000).withAlpha(alpha);
 
     // Any changes or no teacher at this element
-    if(webuntisElement.code == "irregular" || webuntisElement.te.first.id == 0) return const Color(0xff8F19B3).withAlpha(alpha);
+    if(webuntisElement.code == 'irregular' || webuntisElement.te.first.id == 0) return const Color(0xff8F19B3).withAlpha(alpha);
 
     // Event was in the past
     if(endTime.isBefore(DateTime.now())) return Theme.of(context).primaryColor.withAlpha(alpha);
@@ -327,7 +327,7 @@ class _TimetableState extends State<Timetable> {
   bool _isCrossedOut(CalendarAppointmentDetails calendarEntry) {
     ArbitraryAppointment appointment = calendarEntry.appointments.first.id as ArbitraryAppointment;
     if(appointment.hasWebuntis()) {
-      return appointment.webuntis!.code == "cancelled";
+      return appointment.webuntis!.code == 'cancelled';
     }
     return false;
   }
diff --git a/lib/view/pages/timetable/viewCustomTimetableEvents.dart b/lib/view/pages/timetable/viewCustomTimetableEvents.dart
index 2f961fb..144738b 100644
--- a/lib/view/pages/timetable/viewCustomTimetableEvents.dart
+++ b/lib/view/pages/timetable/viewCustomTimetableEvents.dart
@@ -37,7 +37,7 @@ class _ViewCustomTimetableEventsState extends State<ViewCustomTimetableEvents> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Eigene Termine"),
+        title: const Text('Eigene Termine'),
         actions: [
           IconButton(
             icon: const Icon(Icons.add),
@@ -77,10 +77,10 @@ class _ViewCustomTimetableEventsState extends State<ViewCustomTimetableEvents> {
 
         var placeholder = PlaceholderView(
           icon: Icons.calendar_today_outlined,
-          text: "Keine Einträge vorhanden",
+          text: 'Keine Einträge vorhanden',
           button: TextButton(
             onPressed: _openCreateDialog,
-            child: const Text("Termin erstellen"),
+            child: const Text('Termin erstellen'),
           ),
         );
 
diff --git a/lib/view/settings/devToolsSettingsDialog.dart b/lib/view/settings/devToolsSettingsDialog.dart
index 5ce5861..f96d797 100644
--- a/lib/view/settings/devToolsSettingsDialog.dart
+++ b/lib/view/settings/devToolsSettingsDialog.dart
@@ -24,14 +24,14 @@ class _DevToolsSettingsDialogState extends State<DevToolsSettingsDialog> {
       children: [
         ListTile(
           leading: const CenteredLeading(Icon(Icons.speed_outlined)),
-          title: const Text("Performance overlays"),
+          title: const Text('Performance overlays'),
           trailing: const Icon(Icons.arrow_right),
           onTap: () {
             showDialog(context: context, builder: (context) => SimpleDialog(
               children: [
                 ListTile(
                   leading: const Icon(Icons.auto_graph_outlined),
-                  title: const Text("Performance graph"),
+                  title: const Text('Performance graph'),
                   trailing: Checkbox(
                     value: widget.settings.val().devToolsSettings.showPerformanceOverlay,
                     onChanged: (e) => widget.settings.val(write: true).devToolsSettings.showPerformanceOverlay = e!,
@@ -39,7 +39,7 @@ class _DevToolsSettingsDialogState extends State<DevToolsSettingsDialog> {
                 ),
                 ListTile(
                   leading: const Icon(Icons.screen_search_desktop_outlined),
-                  title: const Text("Indicate offscreen layers"),
+                  title: const Text('Indicate offscreen layers'),
                   trailing: Checkbox(
                     value: widget.settings.val().devToolsSettings.checkerboardOffscreenLayers,
                     onChanged: (e) => widget.settings.val(write: true).devToolsSettings.checkerboardOffscreenLayers = e!,
@@ -47,7 +47,7 @@ class _DevToolsSettingsDialogState extends State<DevToolsSettingsDialog> {
                 ),
                 ListTile(
                   leading: const Icon(Icons.imagesearch_roller_outlined),
-                  title: const Text("Indicate raster cache images"),
+                  title: const Text('Indicate raster cache images'),
                   trailing: Checkbox(
                     value: widget.settings.val().devToolsSettings.checkerboardRasterCacheImages,
                     onChanged: (e) => widget.settings.val(write: true).devToolsSettings.checkerboardRasterCacheImages = e!,
@@ -59,13 +59,13 @@ class _DevToolsSettingsDialogState extends State<DevToolsSettingsDialog> {
         ),
         ListTile(
           leading: const CenteredLeading(Icon(Icons.image_outlined)),
-          title: const Text("Cached Thumbnails löschen"),
-          subtitle: Text("etwa ${filesize(PaintingBinding.instance.imageCache.currentSizeBytes)}"),
+          title: const Text('Cached Thumbnails löschen'),
+          subtitle: Text('etwa ${filesize(PaintingBinding.instance.imageCache.currentSizeBytes)}'),
           onTap: () {
             ConfirmDialog(
-              title: "Thumbs cache löschen",
-              content: "Alle zwischengespeicherten Bilder werden gelöscht.",
-              confirmButton: "Unwiederruflich löschen",
+              title: 'Thumbs cache löschen',
+              content: 'Alle zwischengespeicherten Bilder werden gelöscht.',
+              confirmButton: 'Unwiederruflich löschen',
               onConfirm: () => PaintingBinding.instance.imageCache.clear(),
             ).asDialog(context);
           },
@@ -73,16 +73,16 @@ class _DevToolsSettingsDialogState extends State<DevToolsSettingsDialog> {
         ),
         ListTile(
           leading: const CenteredLeading(Icon(Icons.settings_applications_outlined)),
-          title: const Text("Settings-storage JSON dump"),
-          subtitle: Text("etwa ${filesize(widget.settings.val().toJson().toString().length * 8)}\nLange tippen um zu löschen"),
+          title: const Text('Settings-storage JSON dump'),
+          subtitle: Text('etwa ${filesize(widget.settings.val().toJson().toString().length * 8)}\nLange tippen um zu löschen'),
           onTap: () {
             JsonViewer.asDialog(context, widget.settings.val().toJson());
           },
           onLongPress: () {
             ConfirmDialog(
-              title: "App-Speicher löschen",
-              content: "Alle Einstellungen gehen verloren! Accountdaten sowie App-Daten sind nicht betroffen.",
-              confirmButton: "Unwiederruflich Löschen",
+              title: 'App-Speicher löschen',
+              content: 'Alle Einstellungen gehen verloren! Accountdaten sowie App-Daten sind nicht betroffen.',
+              confirmButton: 'Unwiederruflich Löschen',
               onConfirm: () {
                 Provider.of<SettingsProvider>(context, listen: false).reset();
               },
@@ -92,7 +92,7 @@ class _DevToolsSettingsDialogState extends State<DevToolsSettingsDialog> {
         ),
         ListTile(
           leading: const CenteredLeading(Icon(Icons.data_object)),
-          title: const Text("Cache-storage JSON dump"),
+          title: const Text('Cache-storage JSON dump'),
           subtitle: FutureBuilder(
             future: const CacheView().totalSize(),
             builder: (context, snapshot) {
@@ -106,9 +106,9 @@ class _DevToolsSettingsDialogState extends State<DevToolsSettingsDialog> {
           },
           onLongPress: () {
             ConfirmDialog(
-              title: "App-Cache löschen",
-              content: "Alle cache Einträge werden gelöscht. Der Cache wird bei Nutzung der App automatisch erneut aufgebaut",
-              confirmButton: "Unwiederruflich löschen",
+              title: 'App-Cache löschen',
+              content: 'Alle cache Einträge werden gelöscht. Der Cache wird bei Nutzung der App automatisch erneut aufgebaut',
+              confirmButton: 'Unwiederruflich löschen',
               onConfirm: () => const CacheView().clear().then((value) => setState((){})),
             ).asDialog(context);
           },
diff --git a/lib/view/settings/privacyInfo.dart b/lib/view/settings/privacyInfo.dart
index 0579fa6..65d2286 100644
--- a/lib/view/settings/privacyInfo.dart
+++ b/lib/view/settings/privacyInfo.dart
@@ -13,17 +13,17 @@ class PrivacyInfo {
   void showPopup(BuildContext context) {
     showDialog(context: context, builder: (context) {
       return SimpleDialog(
-        title: Text("Betreiberinformation | $providerText"),
+        title: Text('Betreiberinformation | $providerText'),
         children: [
           ListTile(
             leading: const CenteredLeading(Icon(Icons.person_pin_outlined)),
-            title: const Text("Impressum"),
+            title: const Text('Impressum'),
             subtitle: Text(imprintUrl),
             onTap: () => ConfirmDialog.openBrowser(context, imprintUrl),
           ),
           ListTile(
             leading: const CenteredLeading(Icon(Icons.privacy_tip_outlined)),
-            title: const Text("Datenschutzerklärung"),
+            title: const Text('Datenschutzerklärung'),
             subtitle: Text(privacyUrl),
             onTap: () => ConfirmDialog.openBrowser(context, privacyUrl),
           ),
diff --git a/lib/view/settings/settings.dart b/lib/view/settings/settings.dart
index 7680f95..a929011 100644
--- a/lib/view/settings/settings.dart
+++ b/lib/view/settings/settings.dart
@@ -40,21 +40,21 @@ class _SettingsState extends State<Settings> {
     return Consumer<SettingsProvider>(builder: (context, settings, child) {
       return Scaffold(
         appBar: AppBar(
-          title: const Text("Einstellungen"),
+          title: const Text('Einstellungen'),
         ),
         body: ListView(
           children: [
             ListTile(
               leading: const CenteredLeading(Icon(Icons.logout_outlined)),
-              title: const Text("Konto abmelden"),
-              subtitle: Text("Angemeldet als ${AccountData().getUsername()}"),
+              title: const Text('Konto abmelden'),
+              subtitle: Text('Angemeldet als ${AccountData().getUsername()}'),
               onTap: () {
                 showDialog(
                   context: context,
                   builder: (context) => ConfirmDialog(
-                    title: "Abmelden?",
-                    content: "Möchtest du dich wirklich abmelden?",
-                    confirmButton: "Abmelden",
+                    title: 'Abmelden?',
+                    content: 'Möchtest du dich wirklich abmelden?',
+                    confirmButton: 'Abmelden',
                     onConfirm: () {
                       SharedPreferences.getInstance().then((value) => {
                         value.clear(),
@@ -75,7 +75,7 @@ class _SettingsState extends State<Settings> {
 
             ListTile(
               leading: const Icon(Icons.dark_mode_outlined),
-              title: const Text("Farbgebung"),
+              title: const Text('Farbgebung'),
               trailing: DropdownButton<ThemeMode>(
                 value: settings.val().appTheme,
                 icon: const Icon(Icons.arrow_drop_down),
@@ -100,7 +100,7 @@ class _SettingsState extends State<Settings> {
 
             ListTile(
               leading: const Icon(Icons.star_border),
-              title: const Text("Favoriten im Talk nach oben sortieren"),
+              title: const Text('Favoriten im Talk nach oben sortieren'),
               trailing: Checkbox(
                 value: settings.val().talkSettings.sortFavoritesToTop,
                 onChanged: (e) {
@@ -111,7 +111,7 @@ class _SettingsState extends State<Settings> {
 
             ListTile(
               leading: const Icon(Icons.mark_email_unread_outlined),
-              title: const Text("Ungelesene Chats nach oben sortieren"),
+              title: const Text('Ungelesene Chats nach oben sortieren'),
               trailing: Checkbox(
                 value: settings.val().talkSettings.sortUnreadToTop,
                 onChanged: (e) {
@@ -124,7 +124,7 @@ class _SettingsState extends State<Settings> {
 
             ListTile(
               leading: const Icon(Icons.drive_folder_upload_outlined),
-              title: const Text("Ordner in Dateien nach oben sortieren"),
+              title: const Text('Ordner in Dateien nach oben sortieren'),
               trailing: Checkbox(
                 value: settings.val().fileSettings.sortFoldersToTop,
                 onChanged: (e) {
@@ -137,7 +137,7 @@ class _SettingsState extends State<Settings> {
 
             ListTile(
               leading: const Icon(Icons.open_in_new_outlined),
-              title: const Text("Dateien immer mit Systemdialog öffnen"),
+              title: const Text('Dateien immer mit Systemdialog öffnen'),
               trailing: Checkbox(
                 value: settings.val().fileViewSettings.alwaysOpenExternally,
                 onChanged: (e) {
@@ -150,8 +150,8 @@ class _SettingsState extends State<Settings> {
 
             ListTile(
               leading: const CenteredLeading(Icon(Icons.notifications_active_outlined)),
-              title: const Text("Push-Benachrichtigungen aktivieren"),
-              subtitle: const Text("Lange tippen für mehr Informationen"),
+              title: const Text('Push-Benachrichtigungen aktivieren'),
+              subtitle: const Text('Lange tippen für mehr Informationen'),
               trailing: Checkbox(
                 value: settings.val().notificationSettings.enabled,
                 onChanged: (e) {
@@ -163,16 +163,16 @@ class _SettingsState extends State<Settings> {
                 },
               ),
               onLongPress: () => showDialog(context: context, builder: (context) => AlertDialog(
-                title: const Text("Info über Push"),
-                content: const SingleChildScrollView(child: Text(""
+                title: const Text('Info über Push'),
+                content: const SingleChildScrollView(child: Text(''
                     "Aufgrund technischer Limitationen müssen Push-nachrichten über einen externen Server - hier 'mhsl.eu' (Author dieser App) - erfolgen.\n\n"
-                    "Wenn Push aktiviert wird, werden deine Zugangsdaten und ein Token verschlüsselt an den Betreiber gesendet und von ihm unverschlüsselt gespeichert.\n\n"
-                    "Der extene Server verwendet die Zugangsdaten um sich maschinell in Nextcloud Talk anzumelden und via Websockets auf neue Nachrichten zu warten.\n\n"
-                    "Wenn eine neue Nachricht eintrifft wird dein Telefon via FBC-Messaging (Google Firebase Push) vom externen Server benachrichtigt.\n\n"
-                    "Behalte im Hinterkopf, dass deine Zugangsdaten auf einem externen Server gespeichert werden und dies trots bester Absichten ein Sicherheitsrisiko sein kann!"
+                    'Wenn Push aktiviert wird, werden deine Zugangsdaten und ein Token verschlüsselt an den Betreiber gesendet und von ihm unverschlüsselt gespeichert.\n\n'
+                    'Der extene Server verwendet die Zugangsdaten um sich maschinell in Nextcloud Talk anzumelden und via Websockets auf neue Nachrichten zu warten.\n\n'
+                    'Wenn eine neue Nachricht eintrifft wird dein Telefon via FBC-Messaging (Google Firebase Push) vom externen Server benachrichtigt.\n\n'
+                    'Behalte im Hinterkopf, dass deine Zugangsdaten auf einem externen Server gespeichert werden und dies trots bester Absichten ein Sicherheitsrisiko sein kann!'
                 )),
                 actions: [
-                  TextButton(onPressed: () => Navigator.of(context).pop(), child: const Text("Zurück"))
+                  TextButton(onPressed: () => Navigator.of(context).pop(), child: const Text('Zurück'))
                 ],
               )),
             ),
@@ -181,18 +181,18 @@ class _SettingsState extends State<Settings> {
 
             ListTile(
               leading: const Icon(Icons.live_help_outlined),
-              title: const Text("Informationen und Lizenzen"),
+              title: const Text('Informationen und Lizenzen'),
               onTap: () {
                 PackageInfo.fromPlatform().then((appInfo) {
                   showAboutDialog(
                     context: context,
                     applicationIcon: const Icon(Icons.apps),
-                    applicationName: "MarianumMobile",
-                    applicationVersion: "${appInfo.appName}\n\nPackage: ${appInfo.packageName}\nVersion: ${appInfo.version}\nBuild: ${appInfo.buildNumber}",
-                    applicationLegalese: "Dies ist ein Inoffizieller Nextcloud & Webuntis Client und wird nicht vom Marianum selbst betrieben.\n"
-                    "Keinerlei Gewähr für Vollständigkeit, Richtigkeit und Aktualität!\n\n"
+                    applicationName: 'MarianumMobile',
+                    applicationVersion: '${appInfo.appName}\n\nPackage: ${appInfo.packageName}\nVersion: ${appInfo.version}\nBuild: ${appInfo.buildNumber}',
+                    applicationLegalese: 'Dies ist ein Inoffizieller Nextcloud & Webuntis Client und wird nicht vom Marianum selbst betrieben.\n'
+                    'Keinerlei Gewähr für Vollständigkeit, Richtigkeit und Aktualität!\n\n'
                     "${kReleaseMode ? "Production" : "Development"} build\n"
-                    "Marianum Fulda 2023-${Jiffy.now().year}\nElias Müller",
+                    'Marianum Fulda 2023-${Jiffy.now().year}\nElias Müller',
                   );
                 });
               },
@@ -201,31 +201,31 @@ class _SettingsState extends State<Settings> {
 
             ListTile(
               leading: const Icon(Icons.policy_outlined),
-              title: const Text("Impressum & Datenschutz"),
+              title: const Text('Impressum & Datenschutz'),
               onTap: () {
                 showDialog(context: context, builder: (context) {
                   return SimpleDialog(
                     children: [
                       ListTile(
                         leading: const CenteredLeading(Icon(Icons.school_outlined)),
-                        title: const Text("Infos zum Marianum Fulda"),
-                        subtitle: const Text("Für Talk-Chats und Dateien"),
+                        title: const Text('Infos zum Marianum Fulda'),
+                        subtitle: const Text('Für Talk-Chats und Dateien'),
                         trailing: const Icon(Icons.arrow_right),
-                        onTap: () => PrivacyInfo(providerText: "Marianum", imprintUrl: "https://www.marianum-fulda.de/impressum", privacyUrl: "https://www.marianum-fulda.de/datenschutz").showPopup(context)
+                        onTap: () => PrivacyInfo(providerText: 'Marianum', imprintUrl: 'https://www.marianum-fulda.de/impressum', privacyUrl: 'https://www.marianum-fulda.de/datenschutz').showPopup(context)
                       ),
                       ListTile(
                         leading: const CenteredLeading(Icon(Icons.date_range_outlined)),
-                        title: const Text("Infos zu Web-/ Untis"),
-                        subtitle: const Text("Für den Vertretungsplan"),
+                        title: const Text('Infos zu Web-/ Untis'),
+                        subtitle: const Text('Für den Vertretungsplan'),
                         trailing: const Icon(Icons.arrow_right),
-                        onTap: () => PrivacyInfo(providerText: "Untis", imprintUrl: "https://www.untis.at/impressum", privacyUrl: "https://www.untis.at/datenschutz-wu-apps").showPopup(context)
+                        onTap: () => PrivacyInfo(providerText: 'Untis', imprintUrl: 'https://www.untis.at/impressum', privacyUrl: 'https://www.untis.at/datenschutz-wu-apps').showPopup(context)
                       ),
                       ListTile(
                         leading: const CenteredLeading(Icon(Icons.send_time_extension_outlined)),
-                        title: const Text("Infos zu mhsl"),
-                        subtitle: const Text("Für Countdowns, Marianum Message und mehr"),
+                        title: const Text('Infos zu mhsl'),
+                        subtitle: const Text('Für Countdowns, Marianum Message und mehr'),
                         trailing: const Icon(Icons.arrow_right),
-                        onTap: () => PrivacyInfo(providerText: "mhsl", imprintUrl: "https://mhsl.eu/id.html", privacyUrl: "https://mhsl.eu/datenschutz.html").showPopup(context),
+                        onTap: () => PrivacyInfo(providerText: 'mhsl', imprintUrl: 'https://mhsl.eu/id.html', privacyUrl: 'https://mhsl.eu/datenschutz.html').showPopup(context),
                       ),
                     ],
                   );
@@ -240,15 +240,15 @@ class _SettingsState extends State<Settings> {
               visible: !kReleaseMode,
               child: ListTile(
                 leading: const CenteredLeading(Icon(Icons.code)),
-                title: const Text("Quellcode MarianumMobile/Client"),
-                subtitle: const Text("GNU GPL v3"),
-                onTap: () => ConfirmDialog.openBrowser(context, "https://mhsl.eu/gitea/MarianumMobile/Client"),
+                title: const Text('Quellcode MarianumMobile/Client'),
+                subtitle: const Text('GNU GPL v3'),
+                onTap: () => ConfirmDialog.openBrowser(context, 'https://mhsl.eu/gitea/MarianumMobile/Client'),
               ),
             ),
 
             ListTile(
               leading: const Icon(Icons.developer_mode_outlined),
-              title: const Text("Entwicklermodus"),
+              title: const Text('Entwicklermodus'),
               trailing: Checkbox(
                 value: settings.val().devToolsEnabled,
                 onChanged: (state) {
@@ -264,15 +264,13 @@ class _SettingsState extends State<Settings> {
                   }
 
                   ConfirmDialog(
-                    title: "Entwicklermodus",
-                    content: ""
-                        "Die Entwickleransicht bietet erweiterte Funktionen, die für den üblichen Gebrauch nicht benötigt werden.\n\nDie Verwendung der Tools kann darüber hinaus bei falscher Verwendung zu Fehlern führen.\n\n"
-                        "Aktivieren auf eigene Verantwortung.",
-                    confirmButton: "Ja, ich verstehe das Risiko",
-                    cancelButton: "Nein, zurück zur App",
-                    onConfirm: () {
-                      changeView();
-                    },
+                    title: 'Entwicklermodus',
+                    content: ''
+                        'Die Entwickleransicht bietet erweiterte Funktionen, die für den üblichen Gebrauch nicht benötigt werden.\n\nDie Verwendung der Tools kann darüber hinaus bei falscher Verwendung zu Fehlern führen.\n\n'
+                        'Aktivieren auf eigene Verantwortung.',
+                    confirmButton: 'Ja, ich verstehe das Risiko',
+                    cancelButton: 'Nein, zurück zur App',
+                    onConfirm: changeView,
                   ).asDialog(context);
                 },
               ),
diff --git a/lib/widget/about/about.dart b/lib/widget/about/about.dart
index f0af782..ff5b7fb 100644
--- a/lib/widget/about/about.dart
+++ b/lib/widget/about/about.dart
@@ -8,12 +8,12 @@ class About extends StatelessWidget {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Über diese App"),
+        title: const Text('Über diese App'),
       ),
       body: const Card(
         elevation: 1,
         borderOnForeground: true,
-        child: Text("Marianum Fulda"),
+        child: Text('Marianum Fulda'),
       ),
     );
   }
diff --git a/lib/widget/animatedTime.dart b/lib/widget/animatedTime.dart
index ec2d47e..11edc25 100644
--- a/lib/widget/animatedTime.dart
+++ b/lib/widget/animatedTime.dart
@@ -32,13 +32,13 @@ class _AnimatedTimeState extends State<AnimatedTime> {
   Widget build(BuildContext context) {
     return Row(
       children: [
-        const Text("Noch "),
+        const Text('Noch '),
         buildWidget(current.inDays),
-        const Text(" Tage, "),
+        const Text(' Tage, '),
         buildWidget(current.inHours > 24 ? current.inHours - current.inDays * 24 : current.inHours),
-        const Text(":"),
+        const Text(':'),
         buildWidget(current.inMinutes > 60 ? current.inMinutes - current.inHours * 60 : current.inMinutes),
-        const Text(":"),
+        const Text(':'),
         buildWidget(current.inSeconds > 60 ? current.inSeconds - current.inMinutes * 60 : current.inSeconds),
       ],
     );
diff --git a/lib/widget/confirmDialog.dart b/lib/widget/confirmDialog.dart
index 9e6fb92..75fc153 100644
--- a/lib/widget/confirmDialog.dart
+++ b/lib/widget/confirmDialog.dart
@@ -8,10 +8,10 @@ class ConfirmDialog extends StatelessWidget {
   final String confirmButton;
   final String cancelButton;
   final void Function() onConfirm;
-  const ConfirmDialog({super.key, required this.title, this.content = "", this.icon, this.confirmButton = "Ok", this.cancelButton = "Abbrechen", required this.onConfirm});
+  const ConfirmDialog({super.key, required this.title, this.content = '', this.icon, this.confirmButton = 'Ok', this.cancelButton = 'Abbrechen', required this.onConfirm});
 
   void asDialog(BuildContext context) {
-    showDialog(context: context, builder: (context) => build(context));
+    showDialog(context: context, builder: build);
   }
 
   @override
@@ -36,9 +36,9 @@ class ConfirmDialog extends StatelessWidget {
     showDialog(
       context: context,
       builder: (context) => ConfirmDialog(
-        title: "Link öffnen",
-        content: "Möchtest du den folgenden Link öffnen?\n$url",
-        confirmButton: "Öffnen",
+        title: 'Link öffnen',
+        content: 'Möchtest du den folgenden Link öffnen?\n$url',
+        confirmButton: 'Öffnen',
         onConfirm: () => launchUrl(Uri.parse(url), mode: LaunchMode.externalApplication),
       ),
     );
diff --git a/lib/widget/debug/cacheView.dart b/lib/widget/debug/cacheView.dart
index ce62b10..c639645 100644
--- a/lib/widget/debug/cacheView.dart
+++ b/lib/widget/debug/cacheView.dart
@@ -11,7 +11,7 @@ import '../../../widget/placeholderView.dart';
 import 'jsonViewer.dart';
 
 class CacheView extends StatefulWidget {
-  final collection = "MarianumMobile";
+  final collection = 'MarianumMobile';
   const CacheView({super.key});
 
   @override
@@ -42,7 +42,7 @@ class _CacheViewState extends State<CacheView> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Lokaler cache"),
+        title: const Text('Lokaler cache'),
       ),
       body: FutureBuilder(
         future: files,
@@ -52,7 +52,7 @@ class _CacheViewState extends State<CacheView> {
               itemCount: snapshot.data!.length,
               itemBuilder: (context, index) {
                 Map<String, dynamic> element = snapshot.data![snapshot.data!.keys.elementAt(index)];
-                String filename = snapshot.data!.keys.elementAt(index).split("/").last;
+                String filename = snapshot.data!.keys.elementAt(index).split('/').last;
 
                 return ListTile(
                   leading: const Icon(Icons.text_snippet_outlined),
@@ -70,11 +70,11 @@ class _CacheViewState extends State<CacheView> {
                         children: [
                           const ListTile(
                             leading: Icon(Icons.delete_forever),
-                            title: Text("Diese Datei löschen"),
+                            title: Text('Diese Datei löschen'),
                           ),
                           ListTile(
                             leading: const Icon(Icons.copy),
-                            title: const Text("Dateitext kopieren"),
+                            title: const Text('Dateitext kopieren'),
                             onTap: () {
                               Clipboard.setData(ClipboardData(text: jsonEncode(element)));
                               Navigator.of(context).pop();
@@ -93,7 +93,7 @@ class _CacheViewState extends State<CacheView> {
             );
           } else {
             return const Center(
-              child: PlaceholderView(icon: Icons.hourglass_empty, text: "Keine Daten"),
+              child: PlaceholderView(icon: Icons.hourglass_empty, text: 'Keine Daten'),
             );
           }
         },
diff --git a/lib/widget/debug/debugTile.dart b/lib/widget/debug/debugTile.dart
index 1839758..0bf879f 100644
--- a/lib/widget/debug/debugTile.dart
+++ b/lib/widget/debug/debugTile.dart
@@ -15,17 +15,17 @@ class DebugTile {
 
   Widget jsonData(Map<String, dynamic> data, {bool ignoreConfig = false}) {
     return callback(
-      title: "JSON daten anzeigen",
+      title: 'JSON daten anzeigen',
       onTab: () => JsonViewer.asDialog(context, data)
     );
   }
 
-  Widget callback({String title = "Debugaktion", required void Function() onTab}) {
+  Widget callback({String title = 'Debugaktion', required void Function() onTab}) {
     return child(
       ListTile(
         leading: const CenteredLeading(Icon(Icons.developer_mode_outlined)),
         title: Text(title),
-        subtitle: const Text("Entwicklermodus aktiviert"),
+        subtitle: const Text('Entwicklermodus aktiviert'),
         onTap: onTab,
       )
     );
diff --git a/lib/widget/debug/jsonViewer.dart b/lib/widget/debug/jsonViewer.dart
index 2cae647..f89ec89 100644
--- a/lib/widget/debug/jsonViewer.dart
+++ b/lib/widget/debug/jsonViewer.dart
@@ -30,20 +30,20 @@ class JsonViewer extends StatelessWidget {
     showDialog(context: context, builder: (context) {
       return AlertDialog(
         scrollable: true,
-        title: const Row(children: [Icon(Icons.bug_report_outlined), Text("Rohdaten")]),
+        title: const Row(children: [Icon(Icons.bug_report_outlined), Text('Rohdaten')]),
         content: Text(JsonViewer.format(dataMap)),
         actions: [
           TextButton(onPressed: () {
             Clipboard.setData(ClipboardData(text: JsonViewer.format(dataMap))).then((value) {
-              showDialog(context: context, builder: (context) => const AlertDialog(content: Text("Formatiertes JSON wurde erfolgreich in deiner Zwischenlage abgelegt.")));
+              showDialog(context: context, builder: (context) => const AlertDialog(content: Text('Formatiertes JSON wurde erfolgreich in deiner Zwischenlage abgelegt.')));
             });
-          }, child: const Text("Kopieren")),
+          }, child: const Text('Kopieren')),
           TextButton(onPressed: () {
             Clipboard.setData(ClipboardData(text: dataMap.toString())).then((value) {
-              showDialog(context: context, builder: (context) => const AlertDialog(content: Text("Unformatiertes JSON wurde erfolgreich in deiner Zwischenablage abgelegt.")));
+              showDialog(context: context, builder: (context) => const AlertDialog(content: Text('Unformatiertes JSON wurde erfolgreich in deiner Zwischenablage abgelegt.')));
             });
-          }, child: const Text("Inline Kopieren")),
-          TextButton(onPressed: () => Navigator.of(context).pop(), child: const Text("Schließen"))
+          }, child: const Text('Inline Kopieren')),
+          TextButton(onPressed: () => Navigator.of(context).pop(), child: const Text('Schließen'))
         ],
       );
     });
diff --git a/lib/widget/fileViewer.dart b/lib/widget/fileViewer.dart
index 13748d3..72d0ea3 100644
--- a/lib/widget/fileViewer.dart
+++ b/lib/widget/fileViewer.dart
@@ -37,7 +37,7 @@ class _FileViewerState extends State<FileViewer> {
   Widget build(BuildContext context) {
     AppBar appbar({List actions = const []}) {
       return AppBar(
-        title: Text(widget.path.split("/").last),
+        title: Text(widget.path.split('/').last),
         actions: [
           IconButton(
               onPressed: () => Navigator.of(context).push(
@@ -59,12 +59,12 @@ class _FileViewerState extends State<FileViewer> {
       );
     }
 
-    switch(openExternal ? "" : widget.path.split(".").last.toLowerCase()) {
-      case "png":
-      case "jpg":
-      case "jpeg":
-      case "webp":
-      case "gif":
+    switch(openExternal ? '' : widget.path.split('.').last.toLowerCase()) {
+      case 'png':
+      case 'jpg':
+      case 'jpeg':
+      case 'webp':
+      case 'gif':
         return Scaffold(
             appBar: appbar(
                 actions: [
@@ -84,7 +84,7 @@ class _FileViewerState extends State<FileViewer> {
         );
 
 
-      case "pdf":
+      case 'pdf':
         return Scaffold(
           appBar: appbar(),
           body: SfPdfViewer.file(
@@ -105,11 +105,11 @@ class _FileViewerState extends State<FileViewer> {
         });
 
         return PlaceholderView(
-          text: "Datei extern geöffnet",
+          text: 'Datei extern geöffnet',
           icon: Icons.open_in_new,
           button: TextButton(
             onPressed: () => Navigator.of(context).pop(),
-            child: const Text("Zurück"),
+            child: const Text('Zurück'),
           ),
         );
     }
diff --git a/lib/widget/largeProfilePictureView.dart b/lib/widget/largeProfilePictureView.dart
index 7ea7966..4de08c5 100644
--- a/lib/widget/largeProfilePictureView.dart
+++ b/lib/widget/largeProfilePictureView.dart
@@ -11,10 +11,10 @@ class LargeProfilePictureView extends StatelessWidget {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Profilbild"),
+        title: const Text('Profilbild'),
       ),
       body: PhotoView(
-        imageProvider: Image.network("https://${EndpointData().nextcloud().full()}/avatar/$username/1024").image,
+        imageProvider: Image.network('https://${EndpointData().nextcloud().full()}/avatar/$username/1024').image,
         backgroundDecoration: BoxDecoration(color: Theme.of(context).colorScheme.surface),
       ),
     );
diff --git a/lib/widget/loadingSpinner.dart b/lib/widget/loadingSpinner.dart
index 7561246..5419b1d 100644
--- a/lib/widget/loadingSpinner.dart
+++ b/lib/widget/loadingSpinner.dart
@@ -41,7 +41,7 @@ class _LoadingSpinnerState extends State<LoadingSpinner> {
             visible: textVisible,
             child: const Text(
                 textAlign: TextAlign.center,
-                "Irgendetwas funktioniert nicht!\nBist du mit dem Internet verbunden?\n\nVersuche die App neuzustarten"
+                'Irgendetwas funktioniert nicht!\nBist du mit dem Internet verbunden?\n\nVersuche die App neuzustarten'
             ),
           ),
         ],
diff --git a/lib/widget/unimplementedDialog.dart b/lib/widget/unimplementedDialog.dart
index f90e0db..c829c17 100644
--- a/lib/widget/unimplementedDialog.dart
+++ b/lib/widget/unimplementedDialog.dart
@@ -2,6 +2,6 @@ import 'package:flutter/material.dart';
 
 class UnimplementedDialog {
   static void show(BuildContext context) {
-    showDialog(context: context, builder: (context) => const AlertDialog(content: Text("Not implemented yet")));
+    showDialog(context: context, builder: (context) => const AlertDialog(content: Text('Not implemented yet')));
   }
 }
\ No newline at end of file
diff --git a/lib/widget/userAvatar.dart b/lib/widget/userAvatar.dart
index 7a77bd8..a9a5d92 100644
--- a/lib/widget/userAvatar.dart
+++ b/lib/widget/userAvatar.dart
@@ -16,7 +16,7 @@ class UserAvatar extends StatelessWidget {
       return CircleAvatar(
         foregroundImage: Image(
             image: CachedNetworkImageProvider(
-                "https://${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().full()}/ocs/v2.php/apps/spreed/api/v1/room/$id/avatar",
+                'https://${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().full()}/ocs/v2.php/apps/spreed/api/v1/room/$id/avatar',
                 errorListener: (p0) {}
             )
         ).image,
@@ -30,7 +30,7 @@ class UserAvatar extends StatelessWidget {
       return CircleAvatar(
         foregroundImage: Image(
             image: CachedNetworkImageProvider(
-                "https://${EndpointData().nextcloud().full()}/avatar/$id/$size",
+                'https://${EndpointData().nextcloud().full()}/avatar/$id/$size',
                 errorListener: (p0) {}
             ),
         ).image,