docs: add missing widget props for collections injection zones (#6452)

* docs: add missing widget props for collections injection zones

Adds missing widget props for the `product_collection.details.before` and `product_collection.details.after` injection zones.

* fix lint error

www/apps/docs/content/admin/widgets.md

@@ -534,7 +534,15 @@ Added at the top of the product collection details page
 </td>
 <td>
 
-\-
+Type `ProductCollectionDetailsWidgetProps` imported from `@medusajs/admin`.
+
+<!-- eslint-skip -->
+
+```ts noCopy noReport
+{
+  productCollection, // Collection object
+}
+```
 
 </td>
 </tr>
@@ -552,7 +560,15 @@ Added at the bottom of the product collections list page
 </td>
 <td>
 
-\-
+Type `ProductCollectionDetailsWidgetProps` imported from `@medusajs/admin`.
+
+<!-- eslint-skip -->
+
+```ts noCopy noReport
+{
+  productCollection, // Collection object
+}
+```
 
 </td>
 </tr>