Closing Window without closing application

[d10sfan]

I'm looking into using egui glow and part of the application involves creating a window and then closing it but keeping the rust application alive in the background.

I'm using the event_loop.run_return and I'm back in control of the application when the window is supposed to be closed but I just see a unresponsive window until the application is completely closed.

I would like to be able to destroy the window instead of waiting for the application to close.

[emilk]

Discussion here: #1223