[Docs]: Using Fetchers Example

[iyhub]

Describe what's incorrect/missing in the documentation

https://reactrouter.com/how-to/fetchers#3-add-type-inference

Where is the export of Search defined?

import { useFetcher } from "react-router";
import type { Search } from "./search-users";

export function UserSearchCombobox() {
  let fetcher = useFetcher<typeof Search.action>();
  // ...
}