Suggestion: Keypress to remove virtual background / shortcut keys to disable/enable

[jfeingold]

Just like unmuting with the spacebar, there should be a way to turn off a virtual background easily. Frequently people run into problems showing something on video since the virtual background code doesn't see it as part of the image. People need to go into settings, turn it off and show the item (or carefully place it near part of the screen that is viewable).

I'd also like to be able to turn on/off the virtual background easily via a keyboard shortcut. When I'm at my workspace I'd like it off and when I'm WFH I'd like it on. Should be easy and quick to switch between the two.