4.9.2

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- Launcher: Fix desktop file monitoring on some systems.
- Panel: Improved DnD markers.
- Panel: Fix invalid autohide with socket dialog (bug #8617).
- Panel: Remove duplicated function.
- Panel: Remove duplicated function.
- Actions: Show translated strings (bug #8660).
- Check for sed using a macro.
- Actions: Fix mnemonics conflict (bug #8657).
- Clock: Fix compiler warning (bug #8648).
- Bump version-info of libxfce4panel.
- Translation updates: Arabic, Catalan (Valencian), Czech, Danish,
  German, Greek, Esperanto, Spanish (Castilian), Estonian, Basque,
  Persian, Finnish, French, Galician, Hebrew, Croatian, Hungarian,
  Indonesian, Italian, Japanese, Kazakh, Korean, Lithuanian, Dutch
  (Flemish), Norwegian Nynorsk, Polish, Portuguese, Portuguese
  (Brazilian), Russian, Slovak, Telugu, Turkish, Ukrainian, Chinese
  (China), Chinese (Taiwan).