Copying path of current project copies whitespace (of correct legnth)

### Describe the bug

If you select the path of current project in left down corner, and do rightclick to copy (or ctrl+c) it copies correct width amount of spaces into clipboard instead of the path.

### Affected version

GitHub Copilot CLI 1.0.72-0

### Steps to reproduce the behavior

1. Try to copy this
2.

copies empty space

### Expected behavior

Copies the path

### Additional context

- Windows terminal 1.24

在 Windows Terminal 1.24 中使用 GitHub Copilot CLI 1.0.72-0，通过选择左下方的当前项目路径并复制它来重现该问题。跟踪 CLI 终端 UI 的路径选择和复制处理；当剪贴板中包含路径而不是相同宽度的空白时即完成。

由索引模型根据 Issue 内容生成。