feat(mfa): add MFA to create_password page

[MagentaManifold]

Because

• create_password page does not have MFA

This pull request

• adds MFA to create_password page

Issue that this pull request solves

Closes: FXA-12741

Checklist

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• My commit is GPG signed.
• If applicable, I have modified or added tests which pass locally.
• I have added necessary documentation (if appropriate).
• I have verified that my changes render correctly in RTL (if appropriate).

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Other information (Optional)

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[MagentaManifold]

It looks like:

• There's no GQL endpoint for password create, so there's nothing to update there
• There's no functional test for the create_password page, and there's no way to functional test it at all since it involves signing in with third party auth