✨ When New File Button is pushed, user is prompted to rename file

### Description

When a user presses the "New File" button on a folder or the "Add File" button in the navigator, the user automatically selects that new file and is prompted to rename it.

### Alternatives Considered

_No response_

### Additional Context

_No response_

### Screenshots

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定位文件夹上“New File”按钮和导航器中“Add File”按钮的 UI 处理程序，然后追踪新创建的文件是如何被选中的。验证两个入口点现有的重命名流程；完成的标准是新文件会被自动选中，并提示用户为其重命名。

由索引模型根据 Issue 内容生成。