add fetch back to exports (#3)

Author: jacob-ebey

packages/fetch/src/lib.node.js

@@ -1,6 +1,5 @@
-export { default, Headers, Request, Response } from "./fetch.js"
+export { default, fetch, Headers, Request, Response } from "./fetch.js";
 
+export { ReadableStream, Blob, FormData  } from './package.js';
 // Node 18+ introduces fetch API globally and it doesn't support our use-cases yet.
-// For now we always use the polyfill.
-export { ReadableStream, Blob, FormData  } from './package.js'
-
+// For now we always use the polyfill.