feat: instance options (custom)

[wangcch]

instance?: AxiosInstance;

Customize the Axios instance of the current item.
Override context instance value

const customIns = axios.create({
  // ...
});

function Profile({ userId }) {
  const [{ data, error, isLoading }] = useResource(
    (id) => ({ url: `/user/${id}` }),
    [userId],
    { instance: customIns },
  );

  if (error) return <div>failed to load</div>;
  if (isLoading) return <div>loading...</div>;
  return <div>hello {data.name}!</div>;
}