Minor issue fixes

Hello, we apologize for taking so long for fixes. Here are a few new fixes we have implemented to the game. 1. Fixed a bug where resolution mode 2560x1440 cannot be selected when your monitor resolution setting is set to 2560x1440. 2. Added V-sync option under graphics settings to reduce screen rip error. 3. Reduced excessive screen shake issue during combat. Please let us know if you encounter any issues with this update. Thank you for your help.