chg: use rich address partial in checkout with add/delete support

Replaces the simple address radio list in the checkout page with the
richer ``Shop.Customers.partials.addresses`` partial already used on
the profile edit page.  Customers can now choose among existing
addresses, add a new one on-the-fly, or delete an address directly
from the checkout flow.

resources/views/Shop/Customers/partials/addresses.blade.php

@@ -3,6 +3,7 @@
         @include('Shop.Customers.partials.address_item', [
             'address' => $address,
             'prefix' => $prefix ?? null,
+            'inputName' => $inputName ?? null,
             'with_name' => $with_name ?? false,
             'selected' => $selected ?? null,
         ])
@@ -44,6 +45,7 @@
     <script>
         (function() {
             var prefix = '{{ $prefix }}';
+            var inputName = '{{ $inputName ?? '' }}';
             var $formContainer = $('#add_address_container_{{ $prefix }}');
             var $list = $('#addresses_list_{{ $prefix }}');
             var storeUrl = '{{ route('Shop.Customers.address.store') }}';
@@ -69,7 +71,7 @@
             $.ajax({
                 url: storeUrl,
                 method: 'POST',
-                data: data + '&prefix=' + prefix,
+                data: data + '&prefix=' + prefix + (inputName ? '&input_name=' + inputName : ''),
                 success: function(response) {
                     if (response.html) {
                         $list.append(response.html);