Windows: no CursorMoved events received when cursor is hidden and grabbed

### Description

When cursor is hidden with `set_cursor_visible(false)` and grabbed with `set_cursor_grab(CursorGrabMode::Confined)` the window stops receiving CursorMoved events

### Windows version

```shell
Microsoft Windows [Version 10.0.19043.928]
```


### Winit version

0.30.5