correct implementation of toAlarm

lib/model/requests/create_location_alarm_request.dart

@@ -16,6 +16,7 @@ class CreateLocationAlarmRequest extends CreateAlarmRequest {
       radiusMeters = alarm.radiusMeters,
       super(alarmType: AlarmType.location);
 
-  LocationAlarm toLocationAlarm(String id) =>
+  @override
+  LocationAlarm toAlarm(String id) =>
       LocationAlarm(id: id, location: location!, radiusMeters: radiusMeters!);
 }