Borderless Windows Fullscreen

## What's New:
 
* **Fixed Window Size Glitch:** Fixed the issue where leaving fullscreen or borderless mode could shrink the game into a tiny window or lock it at maximum resolution. It now correctly remembers your previous window size and restores it instantly when you press F11.
 
* **Fixed White Screen Bug:** Fixed an issue where switching to windowed mode could fail to properly resize the game, leaving a white filler area on screen. The window now resizes correctly without any visual glitches.
 
* **Zero-Lag Optimization:** Reworked how the mod handles screen size checks. It now uses virtually zero CPU and will not impact your FPS at all while playing.