Removed obselete functions, changed download bars a bit. renamed files correctly

LightlessSync/Services/NotificationService.cs

@@ -28,7 +28,7 @@ public class NotificationService : DisposableMediatorSubscriberBase, IHostedServ
     private readonly INotificationManager _notificationManager;
     private readonly IChatGui _chatGui;
     private readonly PairRequestService _pairRequestService;
-    private readonly HashSet<string> _shownPairRequestNotifications = new();
+    private readonly HashSet<string> _shownPairRequestNotifications = [];
     private readonly PairUiService _pairUiService;
     private readonly PairFactory _pairFactory;