Fix PayloadTooLargeError in Express gateway by increasing limit to 50mb

whatsapp-gateway/server.js

@@ -24,7 +24,8 @@ const { startSession, disconnectSession, sendMessage, getActiveSessions } = requ
 
 const app = express();
 app.use(cors());
-app.use(express.json());
+app.use(express.json({ limit: '50mb' }));
+app.use(express.urlencoded({ limit: '50mb', extended: true }));
 
 const PORT = process.env.PORT || 3722;