fix: restore opaque background to settings section headers (#10951)

Co-authored-by: Roo Code <[email protected]>
Co-authored-by: Matt Rubens <[email protected]>

webview-ui/src/components/settings/SectionHeader.tsx

@@ -9,7 +9,12 @@ type SectionHeaderProps = HTMLAttributes<HTMLDivElement> & {
 
 export const SectionHeader = ({ description, children, className, ...props }: SectionHeaderProps) => {
 	return (
-		<div className={cn("sticky top-0 z-10 text-vscode-sideBar-foreground px-5 pt-6 pb-4", className)} {...props}>
+		<div
+			className={cn(
+				"sticky top-0 z-10 text-vscode-sideBar-foreground bg-vscode-sideBar-background px-5 pt-6 pb-4",
+				className,
+			)}
+			{...props}>
 			<h3 className="text-[1.25em] font-semibold text-vscode-foreground m-0">{children}</h3>
 			{description && <p className="text-vscode-descriptionForeground text-sm mt-2 mb-0">{description}</p>}
 		</div>