Translate email

[ChristophWurst]

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

As a Nextcloud user I want to be able to understand emails sent in languages I don't speak.

Describe the solution you'd like

Once I open a message, add an action Translate that puts the email text into a translation modal. The modal should be the one that is also used in Talk.
I only need to see the translated text in this modal, with the option to copy, without any further actions in mail.

Describe alternatives you've considered

N/a

Additional context

N/a