I18n: Update translation he (99%).

733 translated messages, 1 untranslated message.

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

734 translated messages.

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

734 translated messages.

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