[WIP] Index posts after Woocommerce custom sort

[MARQAS]

Description of the Change

This PR will resolve the WooCommerce custom sort while using EP

Closes #2928

How to test the Change

• With Woocommerce and EP enabled, go to Products
• Click on "sorting"
• Reorder your products and reload
• See the ordering has been applied
• Visit the shop page and see the ordering is applied

Changelog Entry

Fixed - Woocommerce custom sort

Credits

Props @MARQAS, @felipeelia

Checklist:

• [x] I agree to follow this project's Code of Conduct.
• [x] I have updated the documentation accordingly.
• [ ] I have added tests to cover my change.
• [ ] All new and existing tests pass.