Backup before removing hiddify references

lib/features/app_update/notifier/app_update_notifier.dart

@@ -1,7 +1,6 @@
 import 'package:flutter/foundation.dart';
 import 'package:hiddify/core/app_info/app_info_provider.dart';
 import 'package:hiddify/core/localization/locale_preferences.dart';
-import 'package:hiddify/core/model/constants.dart';
 import 'package:hiddify/core/preferences/preferences_provider.dart';
 import 'package:hiddify/core/utils/preferences_utils.dart';
 import 'package:hiddify/features/app_update/data/app_update_data_providers.dart';
@@ -19,7 +18,7 @@ const _debugUpgrader = true;
 
 @riverpod
 Upgrader upgrader(UpgraderRef ref) => Upgrader(
-      appcastConfig: AppcastConfiguration(url: Constants.appCastUrl),
+      // Removed appcastConfig - no updates for Umbrix
       debugLogging: _debugUpgrader && kDebugMode,
       durationUntilAlertAgain: const Duration(hours: 12),
       messages: UpgraderMessages(

lib/features/app_update/widget/new_version_dialog.dart

@@ -24,7 +24,6 @@ class NewVersionDialog extends HookConsumerWidget with PresLogger {
     if (_dialogKey.currentContext == null) {
       return showDialog(
         context: context,
-        useRootNavigator: true,
         builder: (context) => this,
       );
     } else {