updated project style guidelines

lib/api/marianumcloud/talk/getReactions/getReactions.dart

@@ -13,13 +13,9 @@ class GetReactions extends TalkApi<GetReactionsResponse> {
   GetReactions({required this.chatToken, required this.messageId}) : super('v1/reaction/$chatToken/$messageId', null);
 
   @override
-  assemble(String raw) {
-    return GetReactionsResponse.fromJson(jsonDecode(raw)['ocs']);
-  }
+  assemble(String raw) => GetReactionsResponse.fromJson(jsonDecode(raw)['ocs']);
 
   @override
-  Future<Response>? request(Uri uri, ApiParams? body, Map<String, String>? headers) {
-    return http.get(uri, headers: headers);
-  }
+  Future<Response>? request(Uri uri, ApiParams? body, Map<String, String>? headers) => http.get(uri, headers: headers);
 
-}
+}

lib/api/marianumcloud/talk/getReactions/getReactionsResponse.dart

@@ -30,4 +30,4 @@ class GetReactionsResponseObject {
 enum GetReactionsResponseObjectActorType {
   @JsonValue('guests') guests,
   @JsonValue('users') users,
-}
+}