now tests
- first login cold (i.e. after reboot)
- second login cold
- third login warm

for the purposes of the first login a  bunch of standard dirs are ripped
out of the user, since the user was alrady adjusted for testing scenarios
so it has a fixed wallpaper etc.

there's now also a sleep after finding sddm to ensure the system has
quieted down a bit and doesn't use resources which would go to the login
otherwise