Kepler iframe

This is a workaround to run Kepler inside an iframe.

Kepler is made with react, so it's ultimately just javascript, and could be made to work inside vue. Last time I tried, there was a dependency conflict. I couldn't solve it, and it seemed like something that would happen again when we change versions.

Run the example

For somewhat interactive development, you can run the example from the example folder from the root of the project:

python -m http.server

Then visit http://localhost:8000/example