fix cannot read null of mentioned

Author: fmorett

src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts

@@ -2121,7 +2121,7 @@ export class BaileysStartupService extends ChannelStartupService {
 
         if (options?.mentionsEveryOne) {
           mentions = group.participants.map((participant) => participant.id);
-        } else if (options.mentioned?.length) {
+        } else if (options?.mentioned?.length) {
           mentions = options.mentioned.map((mention) => {
             const jid = this.createJid(mention);
             if (isJidGroup(jid)) {