Allow e-mail templates by language

[JCKodel]

It would be nice to be able to write multiple magic link email templates in many languages. When requesting the magic link, we could pass a locale (pt, pt-BR, en, en-US, en-NL, etc.) and get the most appropriate e-mail template to send to the user.

nHost example:

https://docs.nhost.io/products/auth/email-templates
https://docs.nhost.io/products/auth/email-templates#languages
https://docs.nhost.io/reference/javascript/auth/sign-in-email-otp#parameters (options.locale)

[nezaj]

Hey @JCKodel ! Thanks for this feature-request! Making a note of this and will bring up with the team during our weekly meeting!