v1.1.5-Beta Improved Checkers Logic

Full Changelog: 0.6.2...v1.1.5-Beta

We've put in a lot of effort to refine the movement logic in our checkers game. The functions for moving and capturing have been completely reworked and separated for both regular pieces and kings. Now, our checkers adhere to almost all the traditional rules of the original game.

Looking ahead, we plan to implement a rule that enforces mandatory captures for regular pieces. If capturing is possible, they won't be allowed to make a non-capturing move.