Add sms verification process

[zoek1]

Description

Refers/Fixes

https://github.com/gitcoinco/web/issues/6549

Testing

https://www.loom.com/share/07f56078f4214c779bf860759300ea92

[apbendi]

hey @zoek1, I merged this into our branch, looked like it was working but I realize I need Twilio credentials set up for this in development mode, I guess?

I get this error on the backend:

twilio.base.exceptions.TwilioException: Credentials are required to create a TwilioClient

Can you explain how to set this up for testing purposes? Thanks.

[apbendi]

Hey @zoek1, also noticed that when the user is not logged in, the cart is now throwing this error. Do you think you could open up a PR to resolve? Thanks!