feat(medusa): Ordering products on retrieval (#2815)

**What**

Move to transformQuery which adds a default ordering and also allows to order the product list from the store API

**How**
Among other things, fix the product repo to allow ordering by either a key from the product or a key from a relation

FIXES CORE-911
FIXES CORE-901

integration-tests/api/helpers/store-product-seeder.js

@@ -10,8 +10,6 @@ const {
   Image,
   Cart,
   PriceList,
-  CustomerGroup,
-  Customer,
 } = require("@medusajs/medusa")
 
 module.exports = async (connection, data = {}) => {