Log Message:
xfce4-mousepad: update to 0.5.8

Change log:

0.5.8 (2021-11-26)
=====
- Bug Fixes:
  - Revert "Chain-up to parent in `mousepad_window_scroll_event()`" (#150)
  - Search: Fix a memory leak
  - Search: Remove obsolete workaround for the document finalization
  - Drop restrictions on URI scheme
  - Update `POTFILES.in`
  - Printing: Remove the "Page Setup" dialog (#148)
  - Flatpak: Complete scripts
  - Flatpak: Access remote locations with GVfs
  - Search: Fix the history cleanup
  - Search: Prevent GTask warnings when replacing text
  - Search: Ensure settings synchronization before searching
  - Fix translation domain in Appdata file
  - flatpak: Update README
  - flatpak: Add generic manifest and basic scripts

- Translation Updates:
  Albanian, Arabic, Armenian (Armenia), Basque, Belarusian, Bulgarian,
  Catalan, Chinese (China), Chinese (Taiwan), Croatian, Czech, Danish,
  Dutch, Eastern Armenian, English (Australia), English (United
  Kingdom), Estonian, Finnish, French, Galician, German, Greek, Hebrew,
  Hungarian, Icelandic, Indonesian, Interlingue, Italian, Japanese,
  Kazakh, Korean, Lithuanian, Malay, Norwegian Bokmål, Occitan (post
  1500), Persian (Iran), Polish, Portuguese, Portuguese (Brazil),
  Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swedish,
  Thai, Turkish, Ukrainian, Uyghur