Fix 4 small gamesetup issues

• Random lanscape option now works properly.
• Non-host clients now see the game attributes correctly in the loading screen, including in particular the map name.
• AI bots are again translated.
• 'Cheat' setting is persisted correctly in MP gamesetup.

Reported by: myself, Freagarach, nwtour

Differential Revision: https://code.wildfiregames.com/D3841