windows: Improve handling of the `WM_SETTINGCHANGE` (#11738)

This event is broadcast to all windows, so we can handle this message in
the `WindowsWindow` ranther than in `WindowsPlatform`.

Release Notes:

- N/A
d0dd8bf059张小白 committed on 5/14/2024, 5:57:46 PM· committed by GitHubparent491c04e
4 files changedLine totals unavailable