add built in scanner

src/app.js

@@ -121,6 +121,11 @@ async function start() {
   app.use('/loot', require('./routes/loot'));
   app.use('/', require('./routes/hunts'));
 
+  // QR Scanner
+  app.get('/scanner', (req, res) => {
+    res.render('scanner', { title: 'QR Scanner' });
+  });
+
   // Home page
   app.get('/', (req, res) => {
     const { Hunts, Scans } = require('./models');