MrCrayfish Device Mod Continued

## New Features - Re-enabled and improved the **Boat Racers** application. - Added a proper **world selection menu** for Boat Racers with multiple save slots. - Added **Save / Open / Delete / Export** actions for Boat Racers worlds. - Boat Racers worlds can now be exported into the Device Mod **File Manager** as `.brw` files. - Exported Boat Racers worlds can be opened again from File Manager. - Boat Racers save slots are now automatically backed up into File Manager so they can survive game restarts. - Added a folder picker when exporting Boat Racers worlds. - Improved Boat Racers UI with icon-based buttons. - Added WASD controls for Boat Racers. ## Improvements - Improved Boat Racers editor layout. - Restored layer toggles for **BG / FG / Player**. - Fixed several UI elements overlapping the Device OS taskbar. - Improved save slot handling and slot status display. - Boat Racers now uses a cleaner save format for exported worlds. ## Fixes - Fixed Boat Racers saves disappearing after restarting the game by restoring them from exported `.brw` files. - Fixed broken Boat Racers export menu layout. - Fixed multiple Boat Racers UI alignment issues. - Fixed broken/unfinished Boat Racers save/load behavior. - Fixed several small rendering and interaction issues in the Boat Racers editor. ## Notes This update focuses mostly on restoring and expanding unfinished Boat Racers functionality from the original mod while keeping the classic MrCrayfish Device Mod style.