Rematch action at the end of game

[valeriangalliat]

And with unranked games, unranked rematch.

Could be like long pressing the green one to end the game.

[valeriangalliat]

I see two ways to implement this:

• In GPIO module, when long press on the green button, emit state to get the current game data, emit a new match with the same players, and then emit end-game to actually end the game.
• Add a rematch event in the API that would queue the players of the current game. Then GPIO on long green press would emit rematch, then end-game (not at the same time because it would be a race condition).

In both cases there's no way to bypass the queue, if people are in the queue, they'll play first, and that's what we want.