chore(docs): Updated API Reference (v2) (#9148)

Automated changes by [create-pull-request](https://github.com/peter-evans/create-pull-request) GitHub action

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

www/apps/api-reference/specs/admin/components/schemas/AdminCollection.yaml

@@ -1,5 +1,5 @@
 type: object
-description: The parent's collection.
+description: The product collection's details.
 x-schemaName: AdminCollection
 required:
   - id
@@ -26,17 +26,17 @@ properties:
     type: string
     format: date-time
     title: created_at
-    description: The collection's created at.
+    description: The collection's creation date.
   updated_at:
     type: string
     format: date-time
     title: updated_at
-    description: The collection's updated at.
+    description: The collection's update date.
   deleted_at:
     type: string
     format: date-time
     title: deleted_at
-    description: The collection's deleted at.
+    description: The collection's deletion date.
   products:
     type: array
     description: The collection's products.
@@ -44,4 +44,4 @@ properties:
       type: object
   metadata:
     type: object
-    description: The collection's metadata.
+    description: The collection's metadata, used to store custom key-value pairs.