transform about into a landing page and generalize code (#12)

routes/about.js

@@ -1,9 +1,12 @@
 const express = require('express')
+const { getLandingPage } = require('../services/contentful')
+const { catchErrors } = require('../handlers/errorHandlers')
 const router = express.Router()
 
-/* GET about page. */
-router.get('/', function (req, res, next) {
-  res.render('about', { title: 'About' })
-})
+/* GET the about landing page. */
+router.get('/', catchErrors(async function (req, res, next) {
+  const landingPage = await getLandingPage('about', req.query.locale, req.query.api)
+  res.render('landingPage', { title: 'About', landingPage })
+}))
 
 module.exports = router