Local endpoint added successful and negative ownerId implemented

mROA/Implementation/Backend/ConnectionHub.cs

@@ -23,7 +23,7 @@ namespace mROA.Implementation.Backend
 
         public IChannelInteractionModule GetInteraction(int id)
         {
-            return _connections!.GetValueOrDefault(id, null) ?? throw new Exception("No connection found");
+            return _connections!.GetValueOrDefault(id, null) ?? _connections!.GetValueOrDefault(-id, null) ??  throw new Exception("No connection found");
         }
 
         public event ConnectionHandler? OnConnected;