fix layout when header is not collapsible

packages/dataviews/src/dataform-layouts/card/index.tsx

@@ -32,7 +32,7 @@ const NonCollapsibleCardHeader = ( {
 }: {
 	children: React.ReactNode;
 } ) => (
-	<OriginalCardHeader { ...props }>
+	<OriginalCardHeader isBorderless { ...props }>
 		<div
 			style={ {
 				height: '40px', // This is to match the chevron's __next40pxDefaultSize