x11/smproxy: Update to 1.0.8

Add WWW and LICENSE.
Update pkg-descr.

https://lists.x.org/archives/xorg-announce/2022-October/003218.html
https://lists.x.org/archives/xorg-announce/2025-May/003603.html

PR: 295949
Approved by: x11 (arrowd)
Approved by: osa (mentor)