v1.2.1 细节功能优化

• 新增了 TOC 的展开目录层级设置和滚动条功能，防止目录较多的时候目录溢出；
• 修改了首页的展示方式为以前的模式；
• 修复首页按钮没有边框的问题；
• 修复了音乐及吸底模式、视频、推荐文章等不激活时仍然生成首页卡片的问题；
• 修复 wordCount 插件未安装的问题，修改了部分配置；
• 修复音乐的 JSON 配置中有单引号的情况页面不显示的音乐的问题
• 修复标签云在 Hexo4.0 下链接失效的问题；

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• Added TOC's expand directory level settings and scroll bar function to prevent directory overflow when there are many directories;
• Modified the display mode of the homepage to the previous mode;
• Fixed the problem that the home button has no border;
• Fixed an issue where the homepage card was still generated when the music and bottom suction modes, videos, recommended articles, etc. were not activated;
• Fixed the problem that wordCount plugin is not installed, and modified some configurations;
• Fixed the issue that the page does not display music when there are single quotes in the JSON configuration of the music;
• Fixed the problem of tag cloud link failure under Hexo4.0;