Pontoon: Update Arabic (ar) localization of Firefox Screenshots
Pontoon: Update Arabic (ar) localization of Firefox Screenshots

Localization authors:
- ahmad <ahmad@farghal.net>
- Abdalrahman Hwoij <howij1995@gmail.com>
- صفا الفليج <safa1996alfulaij@gmail.com>
- Khaled Hosny <khaledhosny@eglug.org>

mozilla-services/pageshot,mozilla-services/pageshot,mozilla-services/pageshot,mozilla-services/screenshots,mozilla-services/screenshots,mozilla-services/screenshots,mozilla-services/pageshot,mozilla-services/screenshots