refactor(styled card): change shadow to shadow-sm

Author: maiieul

packages/kit-styled/src/components/card/card.tsx

@@ -5,7 +5,10 @@ const Card = component$<PropsOf<'div'>>((props) => {
   return (
     <div
       {...props}
-      class={cn('bg-card text-card-foreground rounded-base border shadow', props.class)}
+      class={cn(
+        'bg-card text-card-foreground rounded-base border shadow-sm',
+        props.class,
+      )}
     >
       <Slot />
     </div>