Refactor getUserData function to use async/await

Middlewares/UserIDMiddlewareAD.js

@@ -5,7 +5,7 @@ const { getUserData } = require('../Middlewares/watcherMiddleware');
 const filePath = path.join(__dirname, '../user.json');
 
 async function checkUserExistsAD(req, res, next) {
-    let userData = getUserData();
+    let userData = await getUserData();
 
     if (!req.user || (!req.user.name && !req.user.id)) {
         return res.status(500).send('Internal Server Error');