Allow running `ink` in the browser

I tried out running ink in the browser and there seem to be the following complications:

First point of failure is, that readline doesn’t exist in the browser https://github.com/vadimdemedes/ink/blob/master/src/components/App.js#L1

As we just want a non-interactive renderer which we plug in to xterm.js, we don’t need readline.

Removing readline gives the next error: stdin not defined.

That can also be fixed, by passing it into the render function.

Last problem: Chalk doesn’t render the colors, even though xterm is able to render them.

I created an example app that even supports the keyboard events and rerendering with a spinner component: https://github.com/timsuchanek/ink-browser

Demo: https://ink-demo.netlify.com/

You can click into the terminal and go up and down in the select 😉

[skorfmann]

Here’s a demo running ink with xtermjs in a browser https://ink-storybook.netlify.app/ - Would be cool to actually make this into a storybook component 😃 - see https://github.com/storybookjs/storybook/issues/11607 as well

[ar-to]

this feature could make this project more interesting.