I18n: Update translation he (70%).

53 translated messages, 22 untranslated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).
I18n: Update translation zh_CN (97%).

73 translated messages, 2 untranslated messages.

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

75 translated messages.

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