Optimize hide PiP when in PiG

The PiP does not "flikker" anymore when you navigate between the menus
But still it could be investigated to improve this further
Make the hiden PiP when in Pig a bit larger

As betacentauri mentioned on his box he needs it
whitespace fixes
PictureInPicture: define resonable default coordinates

Because after a fresh install it could be the PiP did not appear.
Add new SystemInfo key PIPAvailable

Also do not show pip configs in settings when PIP is not available
Merge remote-tracking branch 'openpli/master'