Quick Bug fix release
- UI: rewrite add button dropdown, avoid context menu click cause menu hide
- UI: Fix some theme detail issue
- UI: Improve system sub menu UI
- UI: improve close tab button color
- UI: lazy load sftp component to avoid app freeze
快速问题修复
- UI: 重写添加按钮下拉菜单，避免上下文菜单点击导致菜单隐藏
- UI: 修复主题渲染跟之前不一致问题
- UI: 改进系统菜单界面
- UI: 改进标签页关闭按钮颜色
- UI: 延迟加载sftp组件避免卡顿