This adds another Cantarrell 1.8 missing needle as well as
lighter variant of Done button (it's perhaps caused by displayed
warning about missing swap partition on no_swap test?). With this
in place, all tests on Rawhide passes except of KDE (but it seems
that KDE Live images are borked) and desktop upgrade tests.
Differential Revision: https://phab.qadevel.cloud.fedoraproject.org/D651
