[KFilePlacesView] Lower opacity for hidden items in "show all"
Matches what Dolphin does and makes it easier to spot which entries are actually hidden when selecting "show all"
When I hide a place and want to unhide it again, I click "show all" and then have to look for the entry that I actually hid.
- Verified that the show/hide animation is still working fine
- Verified that hovering a drive which animates the free space bar in still works fine
Edited by Kai Uwe Broulik