feat(plugin): 支持卸载插件时保留用户数据

[guopenghui]

变更内容

为确认对话框增加了额外的勾选框，使用新的 comfirmWithExtra 函数，不影响之前使用 comfirm 函数的代码

动机

应该允许删除插件而保留数据，避免因为误操作而导致积累的用户数据全部丢失

效果截图

相关 issue

• [Feature] 删除插件时应提供选项保留数据 #490

[gemini-code-assist]

Code Review

This pull request introduces a feature to allow users to optionally delete plugin data during the uninstallation process. It updates the plugin deletion API, the UI components for plugin management, and the confirmation dialog to support extra configuration items. The reviewer suggested improving type safety in the Toast component by replacing the reliance on the extra array length with an explicit isExtraMode flag and centralizing the ConfirmExtraItem interface definition to improve maintainability.