Email verification flow with a code instead of a URL

[infomiho]

Our current email verification process requires users to click a link sent to their email, which then opens the client app to activate their account. This can be inconvenient, for example, when accessing the app on a mobile device while your email is on a computer.

Idea:

Implement an additional verification method where users receive a unique code via email, which they can enter in the Auth UI to activate their account. Ideally, both of these methods could rely on the same code under the hood.

Things to think about:

• Ensure the verification code expires after a set period.
• Handle multiple code requests by validating only the latest code.
• Provide clear instructions for the code entry process.

Related Discord thread: https://ptb.discord.com/channels/686873244791210014/1332663089534992384/1332663089534992384