✨ Work email on profile and registration

[gobyrne]

✨ Feature

This adds a flow to verify your work email during registration.

🎨 Design File

New registration and email verification design file

🧑‍🎨 Designer

@substrae

📸 Screenshot

Old Forms

### Old registration form:  

New employee registration form:

Work email verification:

Work email on the profile

🙋‍♀️ Proposed Implementation

(optional) Do you have a proposed implementation?

🌎 Localization

(optional) Provide any new copy along with translations available.

✅ Acceptance Criteria

• [ ] work email field for users
  • [ ] can't be an email address used by another user
  • [ ] can be the same email address as the user's regular email address
  • [ ] case insensitive comparison?
• [ ] included in profile snapshot on submission
• [ ] Can do the "verify email" flow with work email

🛑 Blockers

Issues which must be completed before this one.

### Blocked By
- [ ] #10362

[github-actions[bot]]

Status: Blocked :x:

Issues blocking this PR:

• 10362 :x:

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  This comment was automatically written by the Blocking Issues bot, and this PR will be monitored for further progress.