[FIX] made user host when hosting a lobby

Server/Models/ServerCommunication.cs

@@ -155,6 +155,7 @@ namespace Server.Models
             Lobby lobby = new Lobby( lobbies.Count + 1,0, 8);
             lobbies.Add(lobby);
             serverClientsInlobbies.Add(lobby, new List<ServerClient>());
+            user.Host = true;
             AddToLobby(lobby, user);
             return lobby;
         }