The Pin buttons in the System Tray and Clock pop-ups are is very small. This has
always felt slightly odd to me, and the recent change to add a defined header
area makes it even odder for the System Tray pop-up in my opinion, as the icon
is now much smaller than the area it visibly inhabits. This patch makes both icons
in both applets use the standard size with no local overrides. The clock button is
ported to PC3 in the process.
Depends on DXXXXX (forthcoming patch to fix margins of Plasma theme pin
icon, or delete it)