Improved UX for converting anonymous user to 'full' user.

Hi Supabase folks. I'm working on a project which provides a consumer frontend (and middleware) to my company's legacy ecommerce platform. I pushed for Next.js and have become hopelessly addicted to the possibilities of what Supabase can bring, starting with user authentication and expanding into shopping carts and mailing address management. At present, when a user who isn't logged adds a first item to the cart, an anonymous user is created to tie the user to the cart's contents. This is helpful for investigating abandoned carts, amongst other things. If an anonymous user has been created then, when they go to register an account, it's actually updating the anonymous user to give it an email address and password. The problem is this - the Auth module fires off a 'changed email address' email when this occurs, and the default text says... > Follow this link to confirm the update of your email address from to [email protected] ... b…