Is your feature request related to a problem? Please describe.

Currently it is only possible to quite jjui (using the "q" keyboard shortcut) from the "top level view". If you are on the "diff" view, for example, you must first hit "ESC" to exit the diff window, and then you can use "q" to exit. This is a bit annoying because the actions you must take to exit the app depend on your current "location" in the app UI.

Describe the solution you'd like

I'd like to be able to always use the same keyboard shortcut (e.g. "que") to exit the app, no matter where you were in the app UI.

Describe alternatives you've considered

I guess you could kill the app using ctrl-c, but that does not seem like such a good idea. It would imply to always use ctrl-c to exit, even if you were at the "top view".