FAQ Component made with React and MaterialUI

I had a lot of fun learning more about the Grid system with MaterialUI and how to work with Svgs in React.

What I could not get entirely done is the accordion open state bold header. I tried using the expanded option with sx property, but for some reason, it did not change. The second thing was the nested hover function, that if you on desktop hover over the faq question, the illustration should move. I tried the nested suggested solution from StackOverflow also, but for some reason, it did not apply the code.

Any feedback is welcome