Do not re-configure local push notification if the same option is selected

lib/ui/routes/push_notifications_route.dart

@@ -114,6 +114,11 @@ class _PushNotificationsConfigurationRouteState
     try {
       String firebaseToken = "";
 
+      if (currStatus == await PushNotificationsHelper.getLocalStatus()) {
+        Navigator.of(context).pop();
+        return;
+      }
+
       switch (currStatus) {
         case PushNotificationsStatus.DISABLED:
           break;