private async void State_OnNotificationReceived(object sender, ToastChangedEventArgs e)
        {
            if (e.Notification != null || !string.IsNullOrEmpty(e.Notification.UserId))
            {
                var UserId = CurrentUser.FindFirst(ClaimTypes.NameIdentifier);

                if (!string.IsNullOrEmpty(e.Notification.UserId) && e.Notification.UserId.Equals(UserId))
                {
                    await StateChanged();
                }
            }
        }
 private async void State_OnNotificationListCleared(object sender, ToastChangedEventArgs e)
 {
     await StateChanged();
 }