I18n: Update translation th (100%).

354 translated messages.

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

354 translated messages.

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

354 translated messages.

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

354 translated messages.

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

354 translated messages.

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

354 translated messages.

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