Restore latest online status on opening Kaidan

The latest online status before closing Kaidan is restored when Kaidan is started again.
3 jobs for feature/restore-online-status in 2 minutes and 29 seconds (queued for 11 minutes and 6 seconds)
Status Job ID Name Coverage
  Test
passed #79132
build

00:01:04

passed #79130
clazy

00:01:04

passed #79131
qmllint

00:00:20