updated project style guidelines

lib/api/marianumcloud/webdav/queries/downloadFile/downloadFile.dart

@@ -19,4 +19,4 @@ class DownloadFile extends WebdavApi<DownloadFileParams> {
     // OpenFile.open(localPath);
     throw UnimplementedError();
   }
-}
+}

lib/api/marianumcloud/webdav/queries/downloadFile/downloadFileParams.dart

@@ -14,4 +14,4 @@ class DownloadFileParams extends ApiParams {
 
   factory DownloadFileParams.fromJson(Map<String, dynamic> json) => _$DownloadFileParamsFromJson(json);
   Map<String, dynamic> toJson() => _$DownloadFileParamsToJson(this);
-}
+}

lib/api/marianumcloud/webdav/queries/downloadFile/downloadFileResponse.dart

@@ -11,4 +11,4 @@ class DownloadFileResponse {
 
   factory DownloadFileResponse.fromJson(Map<String, dynamic> json) => _$DownloadFileResponseFromJson(json);
   Map<String, dynamic> toJson() => _$DownloadFileResponseToJson(this);
-}
+}