The Lobby of the game

[AmirJahan]

• On the Create Game UI, we need a button that takes us to the Lobby waiting for others to join.
• Then we need a button that says go to the game.
• This should allow players to join without resetting the timer.
• We also need to make sure that once the game actually begins, we close the room to any latecomers.
• [So, if the room has an initial capacity of 20, if only 7 showed up, then we will have a game with 7 avatars]