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/vendor/psr/container/README.md

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+# PSR Container
+
+This repository holds all interfaces/classes/traits related to [PSR-11](https://github.com/container-interop/fig-standards/blob/master/proposed/container.md).
+
+Note that this is not a container implementation of its own. See the specification for more details.