fix: Fixed the bug on email validation

[johnson-oragui]

This Pull Request is intended to correct the bug that allows users to use an invalid email(non-existing domain part) for registration, login, request-magic-link, and reset-password. ​

Description

This Pull Request is intended to correct the bug that allows users to use an invalid email(non-existing domain part) for registration, login, request-magic-link, and reset-password. Prior to this PR, users were able to register, login with an invalid email like johnson.pragui@gmail.com.com or johnson.oragui@example.com, but with this fix, the email validation on these four endpoints mentioned above are now properly validated. ​

Related Issue (Link to issue ticket)

Invalid email on login

Invalid email on registration

invalid email on password reset

invalid email on magic-link

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Motivation and Context

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How Has This Been Tested?

This has been tested with pytest and postman. ​

Screenshots (if appropriate - Postman, etc):

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Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change) ​

Checklist:

• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.

[johnson-oragui]

@trevorjob

Kindly reviews