Stop closing down windows when we are waiting for a game.

So I've been wondering, me and alot of my friends get really annoyed when we're in the store, looking for a new champion to buy, runes, skins, and then when a match is found, 10 people don't accept it, it closes down, along with any windows I have open... so i have to reopen everything again and again.

It's only a little change but I am sure lots of people would like it :3

Thanks again for reading :D