As part of the account sign up process, new users should agree to the terms of service, and our CoC.

Tasks:

• extend the sign up form, adding tos_agreement
• probably should just move the coc_agreement field from the volunteer profile model to the user account model
• render the new fields to the sign up page
• these fields are required
• make it read-only in the admin

Tests:

• write tests to ensure that without these fields checked, user cannot proceed with sign up.

Useful docs:

• Django-allauth docs on extending the account forms https://docs.allauth.org/en/latest/account/forms.html

TBD: what is the Terms of Service?
Since we are hosted by The PSF, maybe check with PSF first of what the Terms of Service should be.