I18n: Update translation he (99%).

679 translated messages, 2 untranslated messages.

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

681 translated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).
I18n: Update translation vi (79%).

544 translated messages, 137 untranslated messages.

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

681 translated messages.

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