chore: 添加缺失的静态资源文件

添加多个前端界面所需的图片、字体、音频等静态资源文件，包括：
- 管理员后台的图标、背景图、组件图片
- 移动端页面的商品图片、用户中心图片、活动图标
- 第三方库的示例图片和字体文件
- 浏览器兼容性配置文件
- 图标字体文件（eot、ttf、woff、woff2格式）

这些资源是前端界面正常显示所必需的，之前可能因版本控制忽略或遗漏而缺失。

vendor/symfony/translation/MetadataAwareInterface.php

@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Translation;
+
+/**
+ * MetadataAwareInterface.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface MetadataAwareInterface
+{
+    /**
+     * Gets metadata for the given domain and key.
+     *
+     * Passing an empty domain will return an array with all metadata indexed by
+     * domain and then by key. Passing an empty key will return an array with all
+     * metadata for the given domain.
+     *
+     * @return mixed The value that was set or an array with the domains/keys or null
+     */
+    public function getMetadata(string $key = '', string $domain = 'messages'): mixed;
+
+    /**
+     * Adds metadata to a message domain.
+     */
+    public function setMetadata(string $key, mixed $value, string $domain = 'messages');
+
+    /**
+     * Deletes metadata for the given key and domain.
+     *
+     * Passing an empty domain will delete all metadata. Passing an empty key will
+     * delete all metadata for the given domain.
+     */
+    public function deleteMetadata(string $key = '', string $domain = 'messages');
+}