If you require an account login when purchasing with the Shopify theme "Dawn", how can you display a login/registration guide on the cart screen and allow users to proceed directly to the checkout process?

If you require login before purchasing on Shopify, by default when you proceed with the purchase from the cart screen if you are not logged in, you will be redirected to the login screen. However, it would also be nice to display the login and membership registration guide on the cart screen from the start.

Modify the code in the setup steps "main-cart-footer.liquid" and "main-register.liquid"