updated project style guidelines

lib/api/marianumcloud/talk/chat/getChat.dart

@@ -14,13 +14,9 @@ class GetChat extends TalkApi<GetChatResponse> {
   GetChat(this.chatToken, this.params) : super('v1/chat/$chatToken', null, getParameters: params.toJson());
 
   @override
-  assemble(String raw) {
-    return GetChatResponse.fromJson(jsonDecode(raw)['ocs']);
-  }
+  assemble(String raw) => GetChatResponse.fromJson(jsonDecode(raw)['ocs']);
 
   @override
-  Future<Response> request(Uri uri, Object? body, Map<String, String>? headers) {
-    return http.get(uri, headers: headers);
-  }
+  Future<Response> request(Uri uri, Object? body, Map<String, String>? headers) => http.get(uri, headers: headers);
   
-}
+}

lib/api/marianumcloud/talk/chat/getChatCache.dart

@@ -13,8 +13,7 @@ class GetChatCache extends RequestCache<GetChatResponse> {
   }
 
   @override
-  Future<GetChatResponse> onLoad() {
-    return GetChat(
+  Future<GetChatResponse> onLoad() => GetChat(
       chatToken,
       GetChatParams(
         lookIntoFuture: GetChatParamsSwitch.off,
@@ -22,11 +21,8 @@ class GetChatCache extends RequestCache<GetChatResponse> {
         limit: 200,
       )
     ).run();
-  }
 
   @override
-  GetChatResponse onLocalData(String json) {
-    return GetChatResponse.fromJson(jsonDecode(json));
-  }
+  GetChatResponse onLocalData(String json) => GetChatResponse.fromJson(jsonDecode(json));
 
-}
+}

lib/api/marianumcloud/talk/chat/getChatParams.dart

@@ -31,4 +31,4 @@ class GetChatParams extends ApiParams {
 enum GetChatParamsSwitch {
   @JsonValue(1) on,
   @JsonValue(0) off,
-}
+}

lib/api/marianumcloud/talk/chat/getChatResponse.dart

@@ -16,7 +16,7 @@ class GetChatResponse extends ApiResponse {
   Map<String, dynamic> toJson() => _$GetChatResponseToJson(this);
 
   List<GetChatResponseObject> sortByTimestamp() {
-    List<GetChatResponseObject> sorted = data.toList();
+    var sorted = data.toList();
     sorted.sort((a, b) => a.timestamp.compareTo(b.timestamp));
     return sorted;
   }
@@ -60,12 +60,11 @@ class GetChatResponseObject {
   Map<String, dynamic> toJson() => _$GetChatResponseObjectToJson(this);
 
   static GetChatResponseObject getDateDummy(int timestamp) {
-    DateTime elementDate = DateTime.fromMillisecondsSinceEpoch(timestamp * 1000);
+    var elementDate = DateTime.fromMillisecondsSinceEpoch(timestamp * 1000);
     return getTextDummy(Jiffy.parseFromDateTime(elementDate).format(pattern: 'dd.MM.yyyy'));
   }
 
-  static GetChatResponseObject getTextDummy(String text) {
-    return GetChatResponseObject(
+  static GetChatResponseObject getTextDummy(String text) => GetChatResponseObject(
         0,
         '',
         GetRoomResponseObjectMessageActorType.user,
@@ -81,13 +80,12 @@ class GetChatResponseObject {
         null,
         null
     );
-  }
 
 }
 
 Map<String, RichObjectString>? _fromJson(json) {
   if(json is Map<String, dynamic>) {
-    Map<String, RichObjectString> data = {};
+    var data = <String, RichObjectString>{};
     for (var element in json.keys) {
       data.putIfAbsent(element, () => RichObjectString.fromJson(json[element]));
     }
@@ -119,4 +117,4 @@ enum RichObjectStringObjectType {
   @JsonValue('guest') guest,
   @JsonValue('highlight') highlight,
   @JsonValue('talk-poll') talkPoll,
-}
+}

lib/api/marianumcloud/talk/chat/richObjectStringProcessor.dart

@@ -11,4 +11,4 @@ class RichObjectStringProcessor {
 
     return message;
   }
-}
+}