Allow users to manually change the order lists are shown when adding a game to them#461

When I go to add a game to a list, all my lists appear in a very specific order. I think it’s oldest first, newest last. This means that when I make a super cool new list, I have to scroll to the bottom of this menu to add something to it. Every time. Please let us change this order somehow

literally came here to suggest this

The list selector when adding a game will now reflect the same order as the lists in the main list page :)