WindowHandler::send_json()doesn't return aResultanymore
- update baseview and nih-plug
- switch from custom wry fork to the official version of wry since it now supports attaching to a raw window handle (thanks to this fork by toiglak!)
- still need to verify how intercepting keyboard events works now
- drop Editor properly when window is closed (no more memory leaks hopefully)
- start using baseview
- macOS: add support for intercepting keys when the plugin UI is focused