Refactor GroupChatInfo to manage group image path and subscription lifecycle

Author: codeswot

lib/ui/chat/chat_info/chat_info_screen.dart

@@ -9,6 +9,7 @@ import 'package:whitenoise/config/providers/chat_search_provider.dart';
 import 'package:whitenoise/config/providers/follow_provider.dart';
 import 'package:whitenoise/config/providers/follows_provider.dart';
 import 'package:whitenoise/config/providers/group_provider.dart';
+import 'package:whitenoise/config/states/group_state.dart';
 import 'package:whitenoise/domain/models/dm_chat_data.dart';
 import 'package:whitenoise/domain/models/user_model.dart';
 import 'package:whitenoise/domain/services/dm_chat_service.dart';

lib/ui/chat/chat_info/group_chat_info.dart

@@ -16,16 +16,34 @@ class _GroupChatInfoState extends ConsumerState<GroupChatInfo> {
   bool isLoadingMembers = false;
   String? currentUserNpub;
   String? groupImagePath;
+  ProviderSubscription<GroupsState>? _groupsSubscription;
+
   @override
   void initState() {
     super.initState();
     WidgetsBinding.instance.addPostFrameCallback((_) {
       _loadGroup();
       _loadMembers();
       _loadCurrentUserNpub();
+
+      setState(() {
+        groupImagePath = ref.read(groupsProvider.notifier).getCachedGroupImagePath(widget.groupId);
+      });
+
+      _groupsSubscription = ref.listenManual(groupsProvider, (previous, next) {
+        if (mounted) {
+          _loadMembers();
+        }
+      });
     });
   }
 
+  @override
+  void dispose() {
+    _groupsSubscription?.close();
+    super.dispose();
+  }
+
   Future<void> _loadGroup() async {
     final groupDetails = ref.read(groupsProvider).groupsMap?[widget.groupId];
     if (groupDetails?.nostrGroupId != null) {
@@ -127,11 +145,6 @@ class _GroupChatInfoState extends ConsumerState<GroupChatInfo> {
   @override
   Widget build(BuildContext context) {
     final groupDetails = ref.watch(groupsProvider).groupsMap?[widget.groupId];
-    final groupsNotifier = ref.watch(groupsProvider.notifier);
-    ref.listen(groupsProvider, (previous, next) {
-      groupImagePath = groupsNotifier.getCachedGroupImagePath(widget.groupId);
-      _loadMembers();
-    });
     final isAdmin = groupAdmins.any((admin) {
       if (currentUserNpub == null) {
         return false;