Fix update mouse cursor state wrong mouse position

[kitbdev]

• fixes Wrong cursor detection when changing buttons default cursor shape while using a stretch mode other then disabled #93131

mouse_default_cursor_shape called update_mouse_cursor_state() which was sending the wrong position when updating the mouse, since it wasn't marked as local and gets transformed.

Also the behavior is buggy even before #85313, so its not the root cause. The wrong mouse position being sent can be seen in v4.0.4.stable.official [fc0b241] as well.

[Sauermann]

The change makes perfect sense. get_mouse_position() returns the position in viewport coordinates.
This was an oversight in #58995.

[akien-mga]

I confirm this fully fixes the bug, both the "regression" which I bisected, and the previously also broken behavior in 4.2-stable.

[akien-mga]

Thanks!