Close an app with right click + close

[Gabriel-p]

Problem

Close an app with right click + close does not exist in this new version of Dock anymore.

I have no idea about what design choices could lead to the removal of right click + close.

Proposal

Restore feature

Prior Art (Optional)

No response

[danirabbit]

When we did our UI survey, closing windows via the dock was the least popular option, even less popular than closing them via multitasking view. Closing via keyboard shortcut was twice as popular.

Since the move to Wayland anything that constitutes window management needs special API in Gala, so any window management features we can avoid makes things simpler and more reliable.

There is however a related, required branch in Gala that would make it possible to re-add this feature elementary/gala#2202

Personally I think if we bring this back it should be part of the window switcher section of the UI and not part of the regular launcher part of the UI. We don't necessarily get window titles that disambiguate between specific windows very well, so at least being able to see which window from which desktop you're closing might help that. I'm not a huge fan of a menu item that closes all windows/ends the whole process as proposed in #278

[Gabriel-p]

Another advantage of this feature: it allows to close multiple instances of the same app at once