I18n: Update translation nl (100%).

279 translated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).
I18n: Update translation hr (99%).

277 translated messages, 2 untranslated messages.

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

279 translated messages.

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