Emulation changes:
- Fix sprites being culled while still one pixel on-screen at the right.
Frontend changes:
- Add option to save VRAM to file.
- Fix barebones file save dialog not working at all.
- Fix broken scaling on macOS and Linux.
- Add drag-and-dropped files to the Recent Software list.
- Optimise debug menus while the emulator is paused.
- Make ALT+ENTER toggle fullscreen.
- Fix various instances of stuck inputs.
- Add a Windows executable icon.