fix: ignore message if there's no content

bots/telegram/events/telegram/message.js

@@ -2,6 +2,7 @@ export default {
     name: 'message',
     once: false,
     async execute(msg) {
+        if (!msg.text) return;
         global.helper.scanText(msg.text.toLowerCase(), `${msg.chat.id}/${msg.message_thread_id}/${msg.message_id}`);
     }
 }