multimedia/video-trimmer: update to 25.03
While here:
- Added 'gnome' to DIST_SUBDIR and to second CATEGORIES.
- Updated COMMENT to hopefully a better COMMENT.
- Added 'pango' to USE_GNOME.
Changelog: https://gitlab.gnome.org/YaLTeR/video-trimmer/-/releases/v25.03
PR: 287923
Reported by: Yusuf Yaman <nxjoseph@protonmail.com> (maintainer)