docs(topappbar): Revert styles documentation since we haven't refactored topappbar to have core-styles mixin yet.
docs(topappbar): Revert styles documentation since we haven't refactored topappbar to have core-styles mixin yet.

PiperOrigin-RevId: 307094545

material-components/material-components-web,material-components/material-components-web,material-components/material-components-web