fix: Workaround for iOS not removing the app badge

lib/pages/chat.dart

@@ -2,6 +2,7 @@ import 'dart:async';
 import 'dart:io';
 
 import 'package:adaptive_dialog/adaptive_dialog.dart';
+import 'package:flutter_app_badger/flutter_app_badger.dart';
 
 import 'package:matrix/matrix.dart';
 import 'package:file_picker_cross/file_picker_cross.dart';
@@ -200,6 +201,7 @@ class ChatController extends State<Chat> {
             (r.notificationCount != null && r.notificationCount > 0))) {
           // ignore: unawaited_futures
           FlutterLocalNotificationsPlugin().cancelAll();
+          FlutterAppBadger.removeBadge();
         }
       }
     }

pubspec.lock

@@ -323,6 +323,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_app_badger:
+    dependency: "direct main"
+    description:
+      name: flutter_app_badger
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
   flutter_app_lock:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -23,6 +23,7 @@ dependencies:
   file_picker_cross: ^4.4.2
   flutter:
     sdk: flutter
+  flutter_app_badger: ^1.2.0
   flutter_app_lock: ^1.5.0
   flutter_blurhash: ^0.6.0
   flutter_cache_manager: ^3.1.2