feat: add a key binding to close windows

[soitchu]

Pressing Alt+F4 isn't always the most ergonomic option, so adding a key bind specifically for closing windows makes sense.

[PolGZ]

I don't know anything about programming, so excuse me if what I say is dumb:

But can't one already achieve this by:

• Just going into the default settings menu in gnome? (Keyboard > View and customize shortcuts > Windows > Close window). Or
• Editing /org/gnome/desktop/wm/keybindings/close on dconf and setting the desired combination? (I have ['<Super>q'])

Maybe the PR edits the same thing, but since I don't see any reference to any sort of gsettings set org.gnome.desktop.wm.keybindings on the PR... I thought it might be useful to point it out. Since changing keybindings from Forge when gsettings is set to something else hasn't work for me.

Again, sorry if I'm just mistaken.

[soitchu]

I don't know anything about programming, so excuse me if what I say is dumb:

But can't one already achieve this by:

* Just going into the default settings menu in gnome? (Keyboard > View and customize shortcuts > Windows > Close window). Or

* Editing `/org/gnome/desktop/wm/keybindings/close` on `dconf` and setting the desired combination? (I have `['<Super>q']`)

That's a totally valid way of doing that! I just thought having it in the extension itself would make the UX much better.

Since changing keybindings from Forge when gsettings is set to something else hasn't work for me.

Because of keybind conflicts? Or because it's trying to do the same thing?