Determine the users preferred language to translate emails via Transifex.

[2403905]

Is your feature request related to a problem? Please describe.

Determine the users preferred language to translate emails via Transifex.
Related to issue #6025

Describe the solution you'd like

Pick up the ProfileLanguage from the user settings before the service is rendered the email for the GranteeUser. If the grantee is a group, retrieve the ProfileLanguage from each user.
Based on ProfileLanguage render the email message.

Describe alternatives you've considered

Currently for group events the service use the group name for greeting purpose. Hello {ShareGrantee}, where ShareGrantee will be replaced by the group name.
After the code changes, I can use the user name instead.
@micbar @kobergj Is it useful?

[micbar]

Like discussed in person: we should send individual emails per user.