3a9acb9602
Now that the dash is no longer attached to a screen edge, it lost its "infinite width" (Fitts' law). Restore it by moving the visible bar into a separate layer underneath the actual icons, extend the icons to the bottom edge, and replace the margin around the dash with padding inside the icons. https://gitlab.gnome.org/Teams/Design/os-mockups/-/issues/89 Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1660>