I18n: Update translation ast (96%).

272 translated messages, 11 untranslated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).
I18n: Update translation ast (96%).

272 translated messages, 11 untranslated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).
I18n: Update translation ar (100%).

283 translated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).