Bug 511671

SUMMARY
When shutting down a PC, it can sometimes take some time, especially with a slower PC or many open Programs that need to close. As it stands right now, as far as i could tell, KDE Plasma has no way of indicating that a Shutdown or a Reboot is in Progress. So when I open the start menu and hit shutdown (and then optionally again in the confirmation dialog), it might look like nothing is actually happening for a few seconds until the screen turns black and eventually (if configured) shows the Plymouth  Shutdown Animation or the scrolling text. I think the UX could be improved a lot by having some sort of indication, either just a Notification, by showing something similar to the Splash Screen when plasma starts, or maybe even (don't know if that would be possible) showing what Programs/Services are holding up the shutdown/reboot process, maybe even giving a cancel or force shutdown/reboot continuation

STEPS TO REPRODUCE
1. Open Startmenu
2. Press Shutdown
3. Possibly wait for whatever amount of time without knowing what or if something is going on
4. Screen Turns Black and Shutdown/Reboot is aparent


SOFTWARE/OS VERSIONS
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.19.0
Qt Version: 6.9.2