chore(docs): Generated References (#5743)

Generated the following references:
- `entities`
- `inventory`
- `js-client`
- `pricing`
- `product`
- `services`
- `stock-location`
- `workflows`

Co-authored-by: Oli Juhl <59018053+olivermrbl@users.noreply.github.com>
Co-authored-by: Shahed Nasser <27354907+shahednasser@users.noreply.github.com>

www/apps/docs/content/references/entities/classes/MoneyAmount.mdx

@@ -332,7 +332,7 @@ A Money Amount represent a price amount, for example, a product variant's price
   },
   {
     "name": "region_id",
-    "type": "`string`",
+    "type": "`null` \\| `string`",
     "description": "The region's ID",
     "optional": false,
     "defaultValue": "",

www/apps/docs/content/references/entities/classes/PriceList.mdx

@@ -266,7 +266,7 @@ A Price List represents a set of prices that override the default price for one
       },
       {
         "name": "region_id",
-        "type": "`string`",
+        "type": "`null` \\| `string`",
         "description": "The region's ID",
         "optional": false,
         "defaultValue": "",

www/apps/docs/content/references/entities/classes/ProductVariant.mdx

@@ -437,7 +437,7 @@ A Product Variant represents a Product with a specific set of Product Option con
       },
       {
         "name": "region_id",
-        "type": "`string`",
+        "type": "`null` \\| `string`",
         "description": "The region's ID",
         "optional": false,
         "defaultValue": "",