chore: Update onMessage event to include conversation id (#7497)

app/javascript/widget/helpers/actionCable.js

@@ -2,6 +2,7 @@ import BaseActionCableConnector from '../../shared/helpers/BaseActionCableConnec
 import { playNewMessageNotificationInWidget } from 'widget/helpers/WidgetAudioNotificationHelper';
 import { ON_AGENT_MESSAGE_RECEIVED } from '../constants/widgetBusEvents';
 import { IFrameHelper } from 'widget/helpers/utils';
+import { shouldTriggerMessageUpdateEvent } from './IframeEventHelper';
 
 const isMessageInActiveConversation = (getters, message) => {
   const { conversation_id: conversationId } = message;
@@ -67,6 +68,11 @@ class ActionCableConnector extends BaseActionCableConnector {
     if (isMessageInActiveConversation(this.app.$store.getters, data)) {
       return;
     }
+
+    if (shouldTriggerMessageUpdateEvent(data)) {
+      IFrameHelper.sendMessage({ event: 'onMessage', data });
+    }
+
     this.app.$store.dispatch('conversation/addOrUpdateMessage', data);
   };