Move className overwrite of AccordionContent to the children component

In order to have a smooth opening of the accordion, moving the AccordionContent className overwrite to the children wrapper component allow Radix to calculate correctly the animation and execute a smooth animation in case of className on the  AccordionContent.

Possibly related to #944

apps/www/registry/default/ui/accordion.tsx

@@ -46,15 +46,13 @@ const AccordionContent = React.forwardRef<
 >(({ className, children, ...props }, ref) => (
   <AccordionPrimitive.Content
     ref={ref}
-    className={cn(
-      "overflow-hidden text-sm transition-all data-[state=closed]:animate-accordion-up data-[state=open]:animate-accordion-down",
-      className
-    )}
+    className="overflow-hidden text-sm transition-all data-[state=closed]:animate-accordion-up data-[state=open]:animate-accordion-down"
     {...props}
   >
-    <div className="pb-4 pt-0">{children}</div>
+    <div className={cn('pb-4 pt-0', className)}>{children}</div>
   </AccordionPrimitive.Content>
-))
+));
+
 AccordionContent.displayName = AccordionPrimitive.Content.displayName
 
 export { Accordion, AccordionItem, AccordionTrigger, AccordionContent }