/**
 * Joins truthy class-name fragments with a space. A tiny local stand-in for the
 * Shopify plugin's ``~/lib/utils`` ``cn`` (the WordPress app has no such util
 * and no clsx dependency), enough for the copilot's conditional classes.
 *
 * @param classes - Class-name fragments; falsey values are dropped.
 * @return The joined class string.
 */
export function cn(
  ...classes: Array<string | false | null | undefined>
): string {
  return classes.filter(Boolean).join(' ');
}