reliably close daemon and indicator when quitting on Windows and MacOS

2 jobs for master in 17 minutes and 8 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #16792
linux kf5-qt5 qt5.12

00:09:37

34.0%
passed #16793
windows
windows kf5-qt5 qt5.13

00:08:00