It seems like the "view details" button is not working. Let's fix that. Also, you want to display the items on the checkout page. Let's implement that as well.
The "Proceed to Checkout" button in the cart should redirect you to the checkout page. Let's make sure the button is correctly set up to do that and that the checkout page is loading correctly.
Here's the updated artifact to ensure the navigation works and to add some debugging to understand what might be happening:
Now, when you click "Proceed to Checkout" in the cart, check the console.
If you still don't see the checkout page loading or items listed, please check the console for any error messages. They will provide more specific clues about what is going wrong.