Improve default email template styling
Everyone can contribute. Help move this issue forward while earning points, leveling up and collecting rewards.
Follow-up to #27211 (closed)
Right now our default HTML email templates basically have no styling. The message shows up in basic paragraphs with a 'View on GitLab' footer. Examples of these basic emails can be found in https://gitlab.com/gitlab-org/gitlab/-/tree/master/app/views/notify and https://gitlab.com/gitlab-org/gitlab/-/tree/master/ee/app/views/notify. If the email doesn't have a @target_url set then the footer doesn't even show up, so you may not know it was from GitLab, or which instance.
We have some emails that have additional styling, such as pipeline success and others.
Can we develop a default email template that improves the UX? For some emails I think it can also improve the perception - make the email look less like a phishing attempt (especially account unlock, unknown sign in).
Examples
Unstyled/default
Styled
