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/AdminNotification.yaml

@@ -16,48 +16,57 @@ properties:
   to:
     type: string
     title: to
-    description: The notification's to.
+    description: >-
+      Where to send the notification to. For example, if `channel` is `email`,
+      this can be an email number.
   channel:
     type: string
     title: channel
-    description: The notification's channel.
+    description: Through which channel is the notification sent through.
+    example: email
   template:
     type: string
     title: template
-    description: The notification's template.
+    description: >-
+      The ID of the template in a third-party service used as the notification's
+      shape.
   data:
     type: object
-    description: The notification's data.
+    description: Data payload to send with the notification.
   trigger_type:
     type: string
     title: trigger_type
-    description: The notification's trigger type.
+    description: What triggered this notification.
+    example: order.created
   resource_id:
     type: string
     title: resource_id
-    description: The notification's resource id.
+    description: >-
+      The ID of the associated resource. For example, if the notification was
+      triggered because an order was created, this would be the ID of the order.
   resource_type:
     type: string
     title: resource_type
-    description: The notification's resource type.
+    description: The type of the resource that triggered the notification.
+    example: order
   receiver_id:
     type: string
     title: receiver_id
-    description: The notification's receiver id.
+    description: The ID of the user or customer that's receiving this notification.
   original_notification_id:
     type: string
     title: original_notification_id
-    description: The notification's original notification id.
+    description: The ID of the original notification, if this notification is resent.
   external_id:
     type: string
     title: external_id
-    description: The notification's external id.
+    description: The ID of the notification in an external or third-party system.
   provider_id:
     type: string
     title: provider_id
-    description: The notification's provider id.
+    description: The ID of the provider used to send the notification.
   created_at:
     type: string
     format: date-time
     title: created_at
-    description: The notification's created at.
+    description: The date the notification was created.