Log Message:
xfce4-exo: update to 0.12.5

0.12.5
======
- Bug Fixes:
  - Fix typehead in ExoIconView (Xfce #15100)
- Build Updates:
  - Building libexo-1 can now be disabled (Xfce #15138, #15199)
    - Building documentation still requires libexo-1 since some older
      symbols exists only in the GTK+ 2 library
  - Several components were moved around to align with the correct
    library versions:
    - Helpers are now installed in exo-2 paths, and exo-helper-1 has
      been renamed to exo-helper-2 to follow the library version
    - Pixmaps were moved to an unversioned path (pixmaps/exo) since
      they are used by both versions of the library
    - exo-compose-mail has dropped the library version since it
      does not depend on either version of the library
  - The expansion-to-defined flag was re-enabled
- Translation Updates: Albanian, Bulgarian, Danish, Dutch,
  English (United Kingdom), Finnish, Indonesian, Korean, Spanish