feat: update index with view route

Author: mychidarko

app/routes/_app.php

@@ -1,8 +1,3 @@
 <?php
 
-app()->get('/', function () {
-    /**
-     * `render(view, [])` is the same as `echo view(view, [])`
-     */
-    render('index');
-});
+app()->view('/', 'index');