Update app.js to use extended URL encoding in the Express middleware

src/app.js

@@ -22,7 +22,7 @@ app.set('views', path.join(__dirname, 'views'));
 
 app.use(logger('dev'));
 app.use(express.json());
-app.use(express.urlencoded({ extended: false }));
+app.use(express.urlencoded({ extended: true }));
 app.use(cookieParser());
 app.use(express.static(path.join(basedir, 'public')));