v4.8.0

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1. 新增：右键菜单添加文件哈希值计算功能
2. 新增：支持 Icon Composer .icon 文件快速预览插件
3. 修复：无需沙盒权限即可在访达中定位外置磁盘

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1. feat: add file hash calculator to context menu
2. feat: add Icon Composer .icon preview extension
3. fix: reveal external volumes in Finder without sandbox access