[#6622] apply email verification validation to customerProfile component

[SonnyBA]

Is required for the back-end part of #6622

Changes

Adds back-end validation for email verification for the customer profile component.

Checklist

Check off the items that are completed or not relevant.

• Impact on features

  • Checked copying a form
  • Checked import/export of a form
  • Config checks in the configuration overview admin page
  • Checked new model fields are usable in the admin
  • Problem detection in the admin email digest is handled

• Dockerfile/scripts

  • Updated the Dockerfile with the necessary scripts from the ./bin folder

• Commit hygiene

  • Commit messages refer to the relevant Github issue
  • Commit messages explain the "why" of change, not the how

• Documentation

  • Added documentation which describes the changes

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.26%. Comparing base (48e673c) to head (3115eb7).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6639   +/-   ##
=======================================
  Coverage   97.26%   97.26%           
=======================================
  Files         859      859           
  Lines       33312    33330   +18     
  Branches     3004     3006    +2     
=======================================
+ Hits        32400    32418   +18     
  Misses        603      603           
  Partials      309      309           

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