fix: remove notification badge logic from the sdk and move it to sample app

packages/stream_chat_flutter/lib/src/stream_chat.dart

@@ -121,15 +121,5 @@ class StreamChatState extends State<StreamChat> {
   @override
   void initState() {
     super.initState();
-
-    if (!kIsWeb) {
-      client.state?.totalUnreadCountStream?.listen((count) {
-        if (count > 0) {
-          FlutterAppBadger.updateBadgeCount(count);
-        } else {
-          FlutterAppBadger.removeBadge();
-        }
-      });
-    }
   }
 }

packages/stream_chat_flutter/pubspec.yaml

@@ -16,7 +16,6 @@ dependencies:
       url: https://github.com/GetStream/stream-chat-flutter.git
       ref: develop
       path: packages/stream_chat_flutter_core
-  flutter_app_badger: ^1.1.2
   photo_view: ^0.10.3
   rxdart: ^0.25.0
   scrollable_positioned_list: ^0.1.8