updated frontend stack to latest versions (#729)

src/Twig/AssetExtension.php

@@ -1,27 +0,0 @@
-<?php
-
-/*
- * This file is part of the Kimai time-tracking app.
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace App\Twig;
-
-use Symfony\Bridge\Twig\Extension\AssetExtension as BaseAssetExtension;
-
-class AssetExtension extends BaseAssetExtension
-{
-    /**
-     * Overwritten to support subdirectories and subdomains at the same time.
-     *
-     * @param string $path
-     * @param null|string $packageName
-     * @return mixed|string
-     */
-    public function getAssetUrl($path, $packageName = null)
-    {
-        return str_replace('./', 'build/', parent::getAssetUrl($path, $packageName));
-    }
-}