6bcb4f310f
We have always defaults to an empty ornament, so that menu items are always aligned, even when radio items are used. However radio items are fairly rare, so most of the time we end up with an extra margin with no purpose. The design team now prefers radio items to only align with each other, so that regular items get the expected margin. Change the defaults accordingly. Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2843>