2024.2

What's Changed

• .xlsx的MIME类型错了吖 by @Gaven-F in #108

1. 修正树结构Children为null报错的问题
2. 优化图片生成缩略图
3. 更正xlsx的Mime Type

New Contributors

• @Gaven-F made their first contribution in #108

Full Changelog: 2024.1...2024.2