1. Cookie登录支持直接设置igneous
2. 支持使用单独的Profile配置
3. 修复在线模式下阅读页显示重新下载按钮的bug
4. 修复切换登录模式时，按钮状态未同步更新的bug

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1. Support set `igneous` when log in by cookie
2. Support use separate profile
3. Fix the bug that the download button is displayed on the reading page in online mode
4. Fix the bug when switching login mode between password and cookie