adopt MarianumConnectQuery base in remaining queries

lib/api/marianumconnect/queries/submit_feedback/submit_feedback.dart

@@ -3,46 +3,37 @@ import 'dart:io';
 import 'dart:typed_data';
 
 import 'package:device_info_plus/device_info_plus.dart';
-import 'package:dio/dio.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 
-import '../../errors/marianumconnect_error.dart';
-import '../../marianumconnect_api.dart';
-import '../../marianumconnect_endpoint.dart';
+import '../../marianumconnect_query.dart';
 
 /// Submits user feedback to MarianumConnect (`POST me/feedback`, bearer-auth).
 /// The optional screenshot is sent base64-encoded. Replaces the legacy mhsl.eu
 /// `server/feedback` endpoint — the user no longer needs to be sent explicitly,
 /// the bearer token identifies them.
-class SubmitFeedback {
-  final Dio _dio;
-
-  SubmitFeedback({Dio? dio}) : _dio = dio ?? MarianumConnectApi.dio();
+class SubmitFeedback extends MarianumConnectQuery {
+  SubmitFeedback({super.dio});
 
   Future<void> run({
     required String message,
     Uint8List? screenshot,
     String screenshotContentType = 'image/png',
-  }) async {
-    try {
-      final package = await PackageInfo.fromPlatform();
-      final screenshotBase64 = screenshot != null ? base64Encode(screenshot) : null;
-      await _dio.post<void>(
-        MarianumConnectEndpoint.resolve('me/feedback'),
-        data: {
-          'message': message,
-          'screenshot': ?screenshotBase64,
-          'screenshotContentType': screenshot != null ? screenshotContentType : null,
-          'platform': _platform(),
-          'appVersion': package.version,
-          'appBuild': int.tryParse(package.buildNumber),
-          'deviceModel': await _deviceModel(),
-        },
-      );
-    } on DioException catch (e) {
-      throw mapMarianumConnectError(e);
-    }
-  }
+  }) => guard(() async {
+    final package = await PackageInfo.fromPlatform();
+    final screenshotBase64 = screenshot != null ? base64Encode(screenshot) : null;
+    await dio.post<void>(
+      endpoint('me/feedback'),
+      data: {
+        'message': message,
+        'screenshot': ?screenshotBase64,
+        'screenshotContentType': screenshot != null ? screenshotContentType : null,
+        'platform': _platform(),
+        'appVersion': package.version,
+        'appBuild': int.tryParse(package.buildNumber),
+        'deviceModel': await _deviceModel(),
+      },
+    );
+  });
 
   static String? _platform() {
     if (Platform.isAndroid) return 'android';