folder restructuring

lib/api/webuntis/queries/authenticate/authenticate.dart

@@ -1,7 +1,7 @@
 import 'dart:async';
 import 'dart:convert';
 
-import '../../../../model/accountData.dart';
+import '../../../../model/account_data.dart';
 import '../../webuntisApi.dart';
 import 'authenticateParams.dart';
 import 'authenticateResponse.dart';