react-dom/server: clarify when `renderToPipeableStream` is appropriate

At https://reactjs.org/docs/react-dom-server.html#rendertopipeablestream we see this note:

This is a Node.js specific API and modern server environments should use renderToReadableStream instead.

I initially read this as saying "use renderToReadableStream in any environment where web streams are available." This includes modern versions of Node: https://nodejs.org/api/webstreams.html.

But going to the main React 18 release notes page https://reactjs.org/blog/2022/03/29/react-v18.html#react-dom-server, we see that there is a different distinction being made.

renderToPipeableStream: for streaming in Node environments.
renderToReadableStream: for modern edge runtime environments, such as Deno and Cloudflare workers.

(Aside: is Deno really an "edge runtime environment"? 🤔 )

Combined with @sebmarkbage's outlining of the downsides of web streams here https://github.com/reactwg/react-18/discussions/91, it seems clear that renderToPipeableStream should always be preferred in Node environments. It'd be nice if the docs clearly spelled this out.

Beginne mit der verlinkten Dokumentation zu renderToPipeableStream und vergleiche deren Formulierung mit den Release Notes zu React 18 und der verlinkten Diskussion zu Web Streams. Kläre den Unterschied zwischen Node-Umgebungen und Edge-Runtimes und überprüfe, dass der überarbeitete Hinweis nicht länger impliziert, dass modernes Node renderToReadableStream verwenden sollte.