[优化订阅页面](https://github.com/mapleafgo/clash-for-flutter/commit/ffa176c9f41106f3e4aa8f3fa9851fc13da9cc26) [优化日志页面的显示](https://github.com/mapleafgo/clash-for-flutter/commit/0f5ab6becabdc104b8a1267e099875188a81b094)