processQueue method Null safety

Implementation

Future<void> processQueue() async {
  if (_isDispatching || _queue.isEmpty) return;

  _isDispatching = true;

  while (_queue.isNotEmpty) {
    final notification = _queue.removeFirst();
    Get.log('Processing $notification');
    await NotificationDispatchers.instance.dispatchNotification(notification);
  }

  _isDispatching = false;
}