feat(JitsiParticipant): expose bot type.

JitsiConference.js

 
     if (botParticipant) {
         botParticipant._botType = botType;
+        const id = Strophe.getResourceFromJid(jid);
+
+        this.eventEmitter.emit(
+            JitsiConferenceEvents.BOT_TYPE_CHANGED,
+            id,
+            botType);
     }
 
     // if botType changed to undefined, botType was removed, in case of

JitsiConferenceEvents.js

  * User status changed.
  */
 export const USER_STATUS_CHANGED = 'conference.statusChanged';
+
+/**
+ * Event indicates that the bot participant type cahnged.
+ */
+export const BOT_TYPE_CHANGED = 'conference.bot_type_changed';

JitsiParticipant.js

     getFeatures(timeout = 5000) {
         return this._conference.xmpp.caps.getFeatures(this._jid, timeout);
     }
+
+    /**
+     * Returns the bot type for the participant.
+     *
+     * @returns {string|undefined} - The bot type of the participant.
+     */
+    getBotType() {
+        return this._botType;
+    }
 }