Miguel Carreon The current code of the class component can be found here
You need to change the class component to a function component. The current component is stateless, so you need to replace all class methods with functions and it should work.
Alternatively, you can use my npm package @spfxappdev/fluentui-react-controls which contains also this control
A Live demo (PnP community call) is here: youtube.com/watch
Miguel Carreon
I want to learn more about SPFx
How can I use it in SPFx React with hooks ?