[Tails-dev] [review'n'merge:1.3] feature/7779-revisit-touchp…

Hi,

that branch implements what we've decided on #7779.

I've had a hard time to have it working both on GDM and in the GNOME
session, but happily I eventually found a way. And no, they're not
duplicating each other.

Please review'n'merge into devel for 1.3, thanks!

Cheers,
--
intrigeri