Identify locales for pretranslation beta

[flodolo]

• [x] Identify locales for pretranslation beta from the list of volunteers
• [x] Add localizers involved to a Google group to simplify communications

[flodolo]

List of locales has been selected: cy, de, es-AR, fr, hu, id, zh-TW

Google Groups is created, I need to sort out how to invite one of the localizers who blocked invites.