graphics/fractgen: Update 3.0.8 => 3.0.11

Changelog:
https://github.com/dreibh/fractgen/blob/fractgen-3.0.11/ChangeLog
Commit log:
https://github.com/dreibh/fractgen/compare/fractgen-3.0.8...fractgen-3.0.11

Port changes:

• Revise USES.
• Populate OPTIONS and add KDE option off by default.
• Update pkg-descr.

PR: 295702
Reported by: Thomas Dreibholz (maintainer)
Approved by: osa, vvd (Mentors, implicit)