Steps to reproduce: 1. Run App.java Expected results: There should be an exit button to close the game. Actual results: Currently, we have to interrupt the game through the terminal.
Reason: frame.setUndecorated is set to true. Resolution: Set frame.setUndecorated to false. Another issue arises when frame.setUndecorated is set to false, pieces on the board are shifted about 12 pixels down, we need to add this offset when handling mouse click event on the GUI. https://github.com/glennsalter/cs3343-chess/commit/b21243b28d9fdad55400f419b2f12655e468e151