Chess Notation

I added a place for the chess notation to be written to, as long as the device is wide enough.

Next update, I'll provide a way to scroll between the moves, as currently, the moves will go off screen if there are too many of them.

In the previous bug-fix, when fixing castling, I accidentally added another bug which would crash the game if the king was selected on the first move. This was because it checked if the previous move was a check. And, on the first move there are no previous moves, leading to a crash.