vout: macosx: fix resizing window

This MR fix the resizing of the macosx window by completely forgetting about the window and handling all the events inside the display view.

This provides smooth resizing without issues on 3.0, but it's not 100% smooth on 4.0, probably because of #25479 (closed). I need additional test with #26792 (closed) to assert that.

Refs #25264 (closed) Fixes #26846 (closed)