How to change the window icon in Pyxel.
Hello,
I'd like to know if it's possible to change the icon in the top left-hand corner of the window, because I've tried to find out, but haven't been able to. Thank you very much for your help.
![Capture d'écran 2024-05-16 124031](https://github.com/kitao/pyxel/assets/138874262/b7957548-2fde-47af-8681-442ce3a183ac)
