It'd be great to support react-native!

Use case: web-based react-native designer, render the results (view-only) in react-native.

View-only mode (<Editor enabled={false}>) doesn't actually depend on anything dom-related, so it seems easy to make it work under react-native.

I tried it as a proof-of-concept, and it seems that there are only 2 things that needs to be changed:

1. getRandomId should use nanoid/non-secure ('nanoid' doesn't work in react-native)
2. RenderIndicator should import react-dom conditionally. Something like

const isReactNative =
  typeof window !== 'undefined' &&
  window.navigator &&
  window.navigator.product &&
  window.navigator.product === 'ReactNative';

const ReactDOM = !isReactNative ? require('react-dom') : null;

And that's it! After only these two changes it works on React-Native!

I could provide a PR if you are ok with the idea :)