[FEATURE] 支持 vscode.setEditorLayout 命令

[hacke2]

如果你的需求与问题相关，请在下面描述一下（Is your feature request related to a problem? Please describe.）

目前 codeswing 调用 vscode 内置命令来设置编辑器布局，可以设置打开编辑器的分组和布局

调用方式参考：https://github.com/lostintangent/codeswing/blob/main/src/preview/layoutManager.ts#L125

描述你预期的功能表现（Describe the solution you'd like）

描述你考虑过的替代方案（Describe alternatives you've considered）

补充信息（Additional context）

[stale[bot]]

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