[0.15.0] Arrow keys do not update the map preset description

[NearlyDutch]

If you use the arrow keys to change the map preset in the new game dialog, the description on the right side of the selection list is not getting updated. It's therefore also unclear, if the now highlighted item is really selected to be used, or the last selection done by mouse is actually used when creating the new game.

[Rseding91]

Arrow keys to navigate the GUIs aren't really supported at all. You have to use the mouse.

[Unique_Pineapple]

I instinctively pressed the arrow keys upon seeing the list of items. Arrow key interaction should either be fully implemented or not implemented

[Klonan]

Seems to work now