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/Loader/CsvFileLoader.php

@@ -0,0 +1,65 @@
+<?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\Loader;
+
+use Symfony\Component\Translation\Exception\NotFoundResourceException;
+
+/**
+ * CsvFileLoader loads translations from CSV files.
+ *
+ * @author Saša Stamenković <umpirsky@gmail.com>
+ */
+class CsvFileLoader extends FileLoader
+{
+    private string $delimiter = ';';
+    private string $enclosure = '"';
+    private string $escape = '\\';
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function loadResource(string $resource): array
+    {
+        $messages = [];
+
+        try {
+            $file = new \SplFileObject($resource, 'rb');
+        } catch (\RuntimeException $e) {
+            throw new NotFoundResourceException(sprintf('Error opening file "%s".', $resource), 0, $e);
+        }
+
+        $file->setFlags(\SplFileObject::READ_CSV | \SplFileObject::SKIP_EMPTY);
+        $file->setCsvControl($this->delimiter, $this->enclosure, $this->escape);
+
+        foreach ($file as $data) {
+            if (false === $data) {
+                continue;
+            }
+
+            if ('#' !== substr($data[0], 0, 1) && isset($data[1]) && 2 === \count($data)) {
+                $messages[$data[0]] = $data[1];
+            }
+        }
+
+        return $messages;
+    }
+
+    /**
+     * Sets the delimiter, enclosure, and escape character for CSV.
+     */
+    public function setCsvControl(string $delimiter = ';', string $enclosure = '"', string $escape = '\\')
+    {
+        $this->delimiter = $delimiter;
+        $this->enclosure = $enclosure;
+        $this->escape = $escape;
+    }
+}