UI and game improvements

[Brofian]

• The login cookie will now last for 30 days instead of one session
• players will now be shuffled before a game is started, so the order of the players wont be always the same
• fixed bugs in colorChecker:
• • submit button does not disappear after round is skipped
• • typos
• colorChecker: instead of the remaining players, colorChecker will now show the player icons and gray them out if they are waiting
• colorChecker: added an option to peek into other players grids by hovering the player icon