migrate deprecated widget

Author: domai-tb

lib/core/injection.dart

@@ -18,6 +18,7 @@ import 'package:campus_app/utils/pages/calendar_utils.dart';
 import 'package:campus_app/utils/pages/feed_utils.dart';
 import 'package:campus_app/utils/pages/main_utils.dart';
 import 'package:campus_app/utils/pages/mensa_utils.dart';
+import 'package:campus_app/utils/pages/wallet_utils.dart';
 import 'package:cookie_jar/cookie_jar.dart';
 import 'package:dio/dio.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
@@ -60,6 +61,7 @@ Future<void> init() async {
   sl.registerLazySingleton(FeedUtils.new);
   sl.registerLazySingleton(MensaUtils.new);
   sl.registerLazySingleton(MainUtils.new);
+  sl.registerLazySingleton(WalletUtils.new);
 
   //!
   //! Datasources

lib/pages/home/home_page.dart

@@ -200,8 +200,8 @@ class HomePageState extends State<HomePage> {
           : Provider.of<ThemesNotifier>(context, listen: false).currentTheme == AppThemes.light
               ? lightTabletSystemUiStyle
               : darkTabletSystemUiStyle,
-      child: WillPopScope(
-        onWillPop: () async => !await navigatorKeys[currentPage]!.currentState!.maybePop(),
+      child: NavigatorPopHandler(
+        onPop: () => navigatorKeys[currentPage]!.currentState!.pop(),
         child: Scaffold(
           resizeToAvoidBottomInset: false,
           backgroundColor: Provider.of<ThemesNotifier>(context).currentThemeData.colorScheme.background,