Merge pull request pop-os#155 from pop-os/relock

Recover previous locked state

Merge pull request pop-os#142 from bittin/patch-2

Create cosmic_greeter.ftl

Merge pull request pop-os#130 from lilyinstarlight/fix/get-session-by…

…-pid-race

Fix race condition when getting login session

i18n(sk): Add Slovak translations