Add the AI using minimax and alpha-beta pruning

The game is supposed to switch teams (switch the turn) after a move, or after you can't jump anymore after a jump (to allow stringing together jumps with the same checker, like a double jump or a triple jump). For some reason, it's glitching. Fix it.

Add a menu, for settings and choosing whether or not to play against an AI, who starts first, level of AI, etc.

Add jumping functionality and finish basic game

Make the game unclickable (uneditable?) and display in giant text " wins!" when someone wins (all checkers of one type are gone)

Add more levels of undo