doublecmd got retagged

rebuild for python 3.13

- build components and plugins with proper gui toolkit
- add mplayer optdepend for wlxmplayer plugin
- fix gtk2 package description, fixes #2

add extra optdepends for additional previews

- imagemagick: preview xcf files
- ffmpegthumbnailer: preview video files

Closes #1

rebuild with lazarus 3.2

See: https://archlinux.org/todo/remove-usage-of-makepkg-subroutines-from-pkgbuilds/