feat: 附件（软件/手册下载）

app/index/lang/zh-cn.php

@@ -31,5 +31,11 @@ return [
         'detail_leave_reply_comment'   => '留言',
         'detail_leave_reply_submit'    => '提交留言',
         'detail_recommend'             => '你可能还喜欢',
+    ],
+    'attachment' => [
+        'software_drives'   => '软件和驱动程序',
+        'software_download' => '软件下载',
+        'manual_download'   => '手册',
+        'video'             => '视频'
     ]
 ];