accessibility/darkman: Update 2.0.1 => 2.3.1, adopt port
Port changes:
- Move to seperate pkg-plist.
- Add EXAMPLES option for a collection of few shell scripts.
- Remove unneeded MANPAGES_DEPENDS since it's native now.
- Remove extinct patchings from post-patch.
- Silence mkdir(1) calls.
- Also install darkman.conf.5 and darkman.desktop files.
Changelog:
https://gitlab.com/WhyNotHugo/darkman/-/blob/v2.3.1/CHANGELOG.md?ref_type=tags
PR: 295547
Reported by: Pierre-Alain TORET <pierre-alain+freebsd@toret.fr>
Approved by: osa, vvd (Mentors, implicit)
MFH: 2026Q2
(cherry picked from commit f6760103998a1c6f266d5d91721b2bb6987c049b)