Restore award email notifications

[denyshon]

Resolves mozilla/sumo#2347 (and resolves mozilla/sumo#2876).

[denyshon]

Here's how the email looks currently:

Subject: You were awarded the '2026 L10n Badge' badge!

[denyshon]

With my changes:

@kelimuttu, what do you think?

[denyshon]

LTXT changes:

Before:

After:

[denyshon]

TODO:

• consider switching the profile link to use the actual username, so that it works when the user is not signed in
• add tests

[kelimuttu]

Looks good to me. Just one small thing. Can we highlight the badge name in the LTXT version?

[kelimuttu]

Actually, since most badges are awarded to contributors, can we add something like the following before the See all details button?

Mozilla Support is made possible by volunteers like you. Thank you for the time, knowledge, and care you've shared with the community.

[denyshon]

Thanks @kelimuttu!

Regarding highlighting: AFAIK formatting is not available in LTXT, so we can only use symbols/newlines to highlight. Please let me know if you would want any of that.

Regarding the text, I love it <3 I'll see later today what is the best way to add it

[kelimuttu]

Aah, that's ok. It's just a minor thing I don't think we need to overcomplicate. (;

[denyshon]

Actually, since most badges are awarded to contributors, can we add something like the following before the See all details button?

Mozilla Support is made possible by volunteers like you. Thank you for the time, knowledge, and care you've shared with the community.

@kelimuttu text added:

[denyshon]

Also, for reference, here's a screenshot with a longer badge name:

[kelimuttu]

Looks good! I wonder now if we should rename the badge to remove the badge part.

[denyshon]

@kelimuttu yeah, I've been also thinking about that... But since such a change will include renaming nearly all the badges, it's up to you to decide

[kelimuttu]

Yeah, if only there's an easy way for me to update these badges. Let's keep it the same for now and I'll take care of the renaming.

[denyshon]

@kelimuttu sure. Regarding the badges, please note that annual badges should be renamed in the code (but also probably manually afterwards)

[kelimuttu]

Oh, good point! Do you think you can file an issue to update the code? I'll take care of updating the ones we already created.

[denyshon]

@kelimuttu done: mozilla/sumo#3239

Also, are we ready to mark this PR as ready for review? I've done everything I wanted from my side

[kelimuttu]

Thanks, Denys. I think we're ready with this one so go ahead to request for the review from the devs.

[denyshon]

@akatsoulas PR updated, could you please take another look? (and Emil seems to be fine with the tests :D)