Merge pull request #445 from xdevplatform/docs/broadcast-chat-is-moderator

Add is_moderator to broadcast.chat payload

Author: m-rosinsky

x-api/activity/event-payloads.mdx

@@ -2340,7 +2340,7 @@ Fired when a user ends a live broadcast. Public event — can be subscribed to w
 
 ### `broadcast.chat`
 
-Fired when the filtered user receives a chat message in a broadcast that they own. Private event — requires user-context authentication with the `broadcast.read` scope. The `payload` includes the `broadcast_id`, the chat `message_id` and `message` text, an `is_subscriber` boolean, and an `author` block with the sending user's profile.
+Fired when the filtered user receives a chat message in a broadcast that they own. Private event — requires user-context authentication with the `broadcast.read` scope. The `payload` includes the `broadcast_id`, the chat `message_id` and `message` text, an `is_subscriber` boolean, an `is_moderator` boolean, and an `author` block with the sending user's profile. The broadcast owner is reported as `is_moderator: false` in their own broadcast.
 
 ```json title="broadcast.chat" expandable lines wrap icon="/icons/xds/icon-brackets.svg"
 {
@@ -2356,6 +2356,7 @@ Fired when the filtered user receives a chat message in a broadcast that they ow
       "message_id": "2090000000000000004",
       "message": "test",
       "is_subscriber": false,
+      "is_moderator": false,
       "author": {
         "data": {
           "affiliation": {