BE & FE - Passkey Add/Delete Email Notifications

Figma

https://www.figma.com/design/h8xsQafKqKr205RSsJU5Wk/Passkeys?node-id=3662-37390&t=zrEbr0J6zqgtojSC-1

Context

When a user removes or adds a passkey, they should get an automated email detailing the transaction.

This issue covers the frontend work to create the email template content content.

There is a backend component to trigger the creation of the email which can be tracked as a separate issue

Implementation Plan

• Implement markup for email template

Backend Considerations

• Backend should create the empty/placeholder email content template so that we can add the email content markup.
• Backend needs to trigger the sending of the email when the passkey creation/deletion occurs.