This is a simple webapp which renders RASA stories as a graph. See the working demo here. The original app was written in vanilla TS, without React. Your task is to port it to React, as well as to fill out a blank in the code.

1. Fork & clone this repo and install with npm install
2. To start a dev server just run npm start
3. You only need to port the code in graph.tsx. index.tsx is already ported to React and story.ts only contains logic, no UI.
4. I suggest you start by rewriting the renderNode function as a functional component and work your way down the file. (you don't need to change anything about the tippy related code, just keep the class names)
5. In the updateLines function, make sure to fill out the missing part