Empty browser window/tab is left after opening `__open-in-editor` link from JS console/terminal.

[Leftium]

A side effect of opening an __open-in-editor link from the terminal/console is an empty browser window is left opened.

To reproduce:

1. Start vite dev server on port 5173
2. Paste http://localhost:5173/__open-in-editor?file=/ into browser JS console.
3. Click resulting link.

May also echo link to terminal and CTRL+click the link.

Work-around:

• Install my custom vite plugin that writes '<script>window.close()</script>' in response.
• (I also added a short message in case JS is not enabled.)
• It would be nice if the internal __open-in-editor middleware did this by default.

Context:

I wrote a utility function that outputs the __open-in-editor link for the file it was called from.