0.9 Demo Patch Notes and rebranding

Hello! As some of you might have noticed we've recently changed the game name to Checkmate Kings. With it also comes a list of major updates to the demo! ⁃ Online Quick Play, Join Game, and Host! You will now be able to play Online! Whether you want to find a quick match or play with friends, you can do it. Keep in mind we're still in development so bugs are expected. ⁃ The Kings' Gauntlet! Challenge every character in the Kings' Gauntlet, play until you defeat them all or you lose. ⁃ New voiceovers and SFXs! The announcer will now speak during the match to help convey crucial pieces of information. ⁃ Achievements! Play to unlock multiple achievements. ⁃ Main menu pieces updated! Chess pieces will now change every time you visit the main menu. ⁃ QoL improvements, AI improvements, bug fixes, and more.