fix memory leak from incorrect delete call

src/aoclient.cpp

@@ -64,6 +64,7 @@ void AOClient::clientDisconnected()
             false;
         server->updateCharsTaken(server->areas[current_area]);
     }
+    cleanup();
 }
 
 void AOClient::handlePacket(AOPacket packet)

src/server.cpp

@@ -83,7 +83,7 @@ void Server::clientConnected()
     connect(socket, &QTcpSocket::disconnected, this, [=] {
         qDebug() << "removed client" << client->getIpid();
         clients.removeAll(client);
-        delete client;
+        client->deleteLater();
     });
     connect(socket, &QTcpSocket::readyRead, client, &AOClient::clientData);