Add a small delay until a game can be started after a player joins / entrapment ready check

[NeunEinser]

Add a small delay until a game can be started after a player joins:
Essentially, prevents starting the game when someone just joined and has not have had the chance to switch teams

entrapment ready check:
Give an item to all active players they have to click in order for them to be part of the game. This makes sure everyone is ready when starting, but possibly makes starting a game more annoying.

Maybe make it a setting?