[Request] Bring up the menu when holding shift even when "ask" is not selected

[HyperionCoding]

Most of the time I want to use normal fullscreen but sometimes in-window. Currently this requires going through the extension menu to change the mode. This suggestion would make it so that when clicking the fullscreen button with shift or some other modifier pressed, it brought up the "ask" menu.

[No2515]

This is much needed

[HyperionCoding]

I think forking is the only way since the dev seems to have stopped updating.

[dralletje]

Forking and then submitting a PR has a fair chance of making it in.

[noximo]

I've found that this functionality would be useful, so I went and did just that. #59

I've used the CTRL key though, Shift key added an extra border to the popup, changing the key was easier than dealing with that.