Frontent build system is ready (#3)

* Frontent build system is ready

* Set up linter for frontend part

* move code to /src

* update db

* upd test

* remove db

* ignore .db

src/routes/home.js

@@ -0,0 +1,9 @@
+const express = require('express');
+const router = express.Router();
+
+/* GET home page. */
+router.get('/', function (req, res, next) {
+  res.render('index', { title: 'Express' });
+});
+
+module.exports = router;