fixup! ✨(frontend) improve accessibility and styling of summary table

Author: Ovgodd

src/frontend/apps/impress/src/features/docs/doc-table-content/components/Heading.tsx

@@ -41,7 +41,6 @@ export const Heading = ({
     <BoxButton
       id={`heading-${headingId}`}
       $width="100%"
-      key={headingId}
       onMouseOver={() => setIsHover(true)}
       onMouseLeave={() => setIsHover(false)}
       onClick={() => {