Add loading and success snackbar helpers: Introduced showLoadingDialog and showSuccessSnackBar methods in SpaceManagementCommunityDialogHelper for consistent loading indicators and success messages across community dialogs. Updated CreateCommunityDialog and EditCommunityDialog to utilize these new helpers, enhancing user experience and maintainability.

lib/pages/space_management_v2/main_module/shared/helpers/space_management_community_dialog_helper.dart

@@ -18,4 +18,19 @@ abstract final class SpaceManagementCommunityDialogHelper {
       builder: (_) => EditCommunityDialog(community: community),
     );
   }
+
+  static void showLoadingDialog(BuildContext context) => showDialog<void>(
+        context: context,
+        barrierDismissible: false,
+        builder: (context) => const Center(
+          child: CircularProgressIndicator(),
+        ),
+      );
+
+  static void showSuccessSnackBar(BuildContext context, String message) =>
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          content: Text(message),
+        ),
+      );
 }