feat(handlers): Add generic error handler

routes/categories.js

@@ -1,9 +1,10 @@
 const express = require('express')
+const { catchErrors } = require('../handlers/errorHandlers')
 const router = express.Router()
 
-/* GET categories listing. */
-router.get('/', function (req, res, next) {
+/* GET courses listing. */
+router.get('/', catchErrors(async function (req, res, next) {
   res.render('categories', { title: 'Categories' })
-})
+}))
 
 module.exports = router