refactor: client is now running on a different thread

Shared/Network/LiteNetLib/LiteNetLibCommunicatorBase.cs

@@ -25,19 +25,11 @@ public abstract class LiteNetLibCommunicatorBase : Behaviour, INetworkCommunicat
         return this;
     }
 
-    protected override void OnEnteredUniverse(IUniverse universe)
+    protected override void ExitedUniverse(IUniverseObject sender, IUniverse universe)
     {
-        universe.OnPreUpdate += PollEvents;
-    }
-
-    protected override void OnExitedUniverse(IUniverse universe)
-    {
-        universe.OnPreUpdate -= PollEvents;
-
         Stop();
     }
 
-    private void PollEvents(IUniverse sender, UniverseTime engineTime) => Manager.PollEvents();
     protected virtual void OnPacketArrived<T>(T packet, NetPeer peer) where T : INetworkPacket
     {
         if (!listeners.TryGetValue(typeof(T), out List<Delegate>? delegates))