completed group batch feature

lib/screens/groups/group_create_screen.dart

@@ -3,6 +3,7 @@ import 'package:go_router/go_router.dart';
 import 'package:qpay/screens/groups/models/recipient_group_model.dart';
 import 'package:qpay/models/responsive_policy.dart';
 import 'package:qpay/screens/groups/controllers/group_controller.dart';
+import 'package:qpay/widgets/app_snack_bar.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
 import '../recipient/recipients_controller.dart';
@@ -68,12 +69,9 @@ class _GroupCreateScreenState extends State<GroupCreateScreen> {
 
     final recipients = _parseRecipients(_recipientsController.text);
     if (recipients.isEmpty) {
-      ScaffoldMessenger.of(context).showSnackBar(
-        const SnackBar(
-          content: Text(
-            'Please add at least one recipient in name,account format.',
-          ),
-        ),
+      AppSnackBar.show(
+        context,
+        'Please add at least one recipient in name,account format.',
       );
       return;
     }
@@ -94,13 +92,12 @@ class _GroupCreateScreenState extends State<GroupCreateScreen> {
     if (!mounted) return;
 
     if (result.isSuccess) {
-      ScaffoldMessenger.of(context).showSnackBar(
-        const SnackBar(content: Text('Group created successfully.')),
-      );
+      AppSnackBar.showSuccess(context, 'Group created successfully.');
       context.pop(true); // Return true to indicate a new group was created
     } else {
-      ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(content: Text(result.error ?? 'Failed to create group.')),
+      AppSnackBar.showError(
+        context,
+        result.error ?? 'Failed to create group.',
       );
     }
   }