Mouse coordinates are not acquired correctly in smartphone browsers
See the image below. The lower right location is detected as pyxel.mouse_x and pyxel.mouse_y compared to the actual tapped location.
For example, if the screen is 256x256, mouse_x and mouse_y may return values such as 360.

https://github.com/user-attachments/assets/d6e2d275-a35d-4ee6-806c-857b0da9363d

