GUI: don't close game and chat after game end and allows to keep it longer

Current version closes end game window automaticity. It's weird.

TODO for single games:
* [ ] End game dialog must inform about auto-close timeout like "it will be closed in 30 seconds";
* [ ] Must increase auto-close timeout to 20-30 seconds;
* [ ] End game dialog must have additional button or checkbox like "don't close for 5 minutes (use main menu to switch between games)";
* [ ] End game dialog must have additional button to open game logs folder (if logs enabled by preferences);
* [ ] Battlefield must be interactive on client side only (e.g. with working card hints, etc);
* [ ] Game chat must be active after game end (e.g. auto close it on server side after 5 minutes);

TODO for tourney:
* [ ] Need research: keep tourney window after finished like games does;