#5906736 Show renewal-aware warnings when renewals are removed from the cart

Changes proposed in this Pull Request

• This PR updates the warnings shown when a user attempts to remove either a renewal from the cart so that it’s clearer that you keep your current expiration date when you do so. The previous language made it sounds like really bad things would happen.
• This PR also updates the logic to make sure that we show more specific language for domain registrations and plans (when no domains are in the cart), for both new purchases and renewals.

Testing instructions

For each of the following product types (or items), follow the steps below:

• A plan
• A domain registration
• A plan and a domain registration in the same cart
• Any other product of your choice that is not a plan or a domain registration

You will already need a subscription for each of these items.

1. Initiate a renewal of the product, but don’t complete checkout.
2. From within checkout, edit your cart and remove the product.
3. Verify that you get an appropriate warning about the renewal being removed.
   • In the case of domains and plans, verify that the language identifies the type of the item being removed.

In addition to the above, verify that adding a new domain and a new plan to the cart and then removing them also shows appropriate warnings that specify the product type.

Also verify that you can add and remove a valid coupon, with the removal confirmation dialog including coupon-specific wording.

Screenshots

Removing a plan renewal

Removing a domain renewal

Removing any other product renewal