Close to tray / minimize bubbles UI

[joshuai96]

Being able to close / hide the main window would be a nice feature.

[joshmue]

Covered by local configuration:

gsettings set org.gnome.desktop.wm.preferences button-layout 'icon:minimize,maximize,close'

[joshuai96]

No effect on tiling window managers like sway or hyprland.

Bubbles main window would occupy space on a workspace.

[joshmue]

Tracking in #17