feat: add new address button to customers

[webdevNYC]

Hi, I work with DDSGadget on their CommerceLayer App. This new feature allows users to create a new address in the Customer app.

What I did

Currently, the Customer App only shows existing addresses and allows an edit to the address. But, it does not allow the creation of a new address. I implemented the call for the overlay "openAddressOverlay()" in the customer address, using the same logic as that found in the Orders Address to allow the user to add an address for the customer.

How to test

1. Go to the App Router.
2. Select the Customer App.
3. You can choose between two options:
   • Choose a User with no address.
   • Choose a User with an address.
4. In the Address tab, you will find the button labeled "+Add New Address."
5. Complete the form and submit it.

Note: The validation is already in place; I just added the call.

Checklist

• [ X ] Make sure your changes are tested (stories and/or unit, integration, or end-to-end tests).
• [ X ] Make sure to add/update documentation regarding your changes.
• [ X ] You are NOT deprecating/removing a feature.

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