* Verified that plasmoid is hidden when no printer is set up
* Verified that plasmoid is passive (hidden in popup) when printers are set up but no print job is active
* Verified that plasmoid is active (shows in panel) when print job is active
* Verified that error case still works (since I moved the `jobModelError` to root)
* Verified that serach box (only shows if there are many printers) still works
Ideally print-manager's kded module would expose some dbus service so we don't even load the plasmoid if no printer is configured but from what I can tell the kded module doesn't actually connect to cups but just listens to some dbus signals, so the gain is less than expected, it's either kded doing it or plasma doing it or both if printers then end up being configured