v6 chatbot - investigate why chatbot styles are being overridden in Red Hat Developer Hub

[rebeccaalpert]

It looks like chatbot style sheets are being overridden by individual PF React component sheets in Red Hat Developer Hub. I discussed this briefly yesterday with @mcoker, @kmcfaul, and @dlabaj. It might be a webpack issue we can solve by adding a nullloader. However, their webpack configuration appears to be hidden. They are using Backstage. We should investigate further.