add some text to server gui, telling user to run it in terminal instead.

LawnCable requested to merge lc/hint-to-run-the-server-without-window into master


not the prettiest message or screen, but I would not invest much time there currently anyway. We could have some basic gui like minecraft servers (online list + log messages) but I think it's not worth it currently, just use the terminal it's better anyway.

Merge request reports