added the link backfilling functionality

minor improvements/corrections

routes/playlists.js

@@ -1,19 +1,16 @@
 const router = require('express').Router();
 
 const { getUserPlaylists, getPlaylistDetails } = require('../controllers/playlists');
-const { isAuthenticated } = require('../middleware/authCheck');
 const { getPlaylistDetailsValidator } = require('../validators/playlists');
 const { validate } = require("../validators");
 
 router.get(
 	"/me",
-	isAuthenticated,
 	getUserPlaylists
 );
 
 router.get(
 	"/details",
-	isAuthenticated,
 	getPlaylistDetailsValidator,
 	validate,
 	getPlaylistDetails