## Summary

- Refresh GPUI's cached mouse position when window bounds change so
hover hit-testing uses the current cursor position after live resize.
- Return X11 mouse positions in window-relative logical pixels to keep
`PlatformWindow::mouse_position()` consistent with other backends.

Fixes #57354

## Testing

- `cargo fmt -p gpui -p gpui_linux`
- `cargo check -p gpui_linux`
- `cargo check -p gpui`

## Suggested .rules additions

- In GPUI platform backends, `PlatformWindow::mouse_position()` should
return window-relative logical pixels; use separate APIs or fields for
global/device-pixel coordinates.

Release Notes:

- Fixed incorrect hover state while resizing GPUI windows.