Add InPost Pay integration to admin templates

- Created a new template for the cart rule form with custom label, switch, and choice widgets.
- Implemented the InPost Pay block in the order details template for displaying delivery method, APM, and VAT invoice request.
- Added legacy support for the order details template to maintain compatibility with older PrestaShop versions.

modules/inpostizi/views/css/admin/admin.css

@@ -0,0 +1,3 @@
+.card-body+.card-body{border-top:1px solid #dbe6e9}.inpostizi-checkboxes .form-group [class*=col-]{padding-left:0;padding-right:0}.col-form-label.w-auto{width:auto}.inpostizi-input--w-sm{max-width:200px}.inpost-izi-switch{width:100%;padding:5px 0}.inpost-izi-switch label{margin:0;font-size:12px}.inpostizi-checkboxes-options{overflow-y:auto;max-height:50vh}.inpostizi-checkboxes-options .custom-control{padding:10px 10px 10px 35px;border-bottom:1px solid #dbe6e9}.inpostizi-checkboxes-options .custom-control-label{display:block}
+
+/*# sourceMappingURL=admin.css.map*/