Is your feature request related to a problem? Please describe.

I'm trying to use vitest-preview in tests with MUI component and I'm not seeing the styling being picked up. Since MUI is a css-in-js style system, I was wondering if you can provide directions on how to get the preview to pick up the styles. We are using the emotion way of styling. Setting the css: true flag didn't make a difference

Describe the solution you'd like

Just some documentation on how to integrate a css-in-js styling system like emotion/mui into vitest-preview.