minor fixes

lib/screens/groups/screens/group_create_screen.dart

@@ -49,7 +49,10 @@ class _GroupCreateScreenState extends State<GroupCreateScreen> {
       if (parts.length >= 2) {
         final name = parts[0].trim();
         final account = parts[1].trim();
-        final phone = parts[2].trim();
+        String phone = '';
+        if (parts.length > 2) {
+          phone = parts.sublist(2).join(',').trim();
+        }
         if (name.isNotEmpty && account.isNotEmpty) {
           members.add(
             Recipient(
@@ -96,10 +99,7 @@ class _GroupCreateScreenState extends State<GroupCreateScreen> {
       AppSnackBar.showSuccess(context, 'Group created successfully.');
       context.pop(true); // Return true to indicate a new group was created
     } else {
-      AppSnackBar.showError(
-        context,
-        result.error ?? 'Failed to create group.',
-      );
+      AppSnackBar.showError(context, result.error ?? 'Failed to create group.');
     }
   }