Uno: Check for afk people while a game is running to prevent afk-blocking others from playing

[Nothing4You]

After an initial .uno jenni could highlight people in the game if e.g. 30 minutes have passed with nobody that is in the game speaking, this should especially also check whether the "owner" of the game is still active.
Since there is no check there I'm assuming there also isn't a check mid-game, it might also be a good idea to add a check there, however, it might be preferrable in that situation to not just check for general chat but for uno commands, probably only for the person whose turn it is.
Mid-game it might be a better idea not to just kick right away though or at least give the a higher timeout for that. One option could be notify after 10 min, allow "kick" from the game by other players also in the game (could be useful if someone has to go afk for RL reasons mid-game with nobody else playing anyways in the mean time) aswell as some kind of hard limit like an hour(?) until it'll force-end the game.