[shadcn/studio] Newsletter subscription CTA with muted background card, two-column grid layout with rounded workspace image on left, right side featuring muted nested card with heading about building better products, muted text mentioning 1,000,000+ subscribers, horizontal flex email form with background-colored in
pnpm dlx shadcn@latest add "https://registry.directory/r/shadcn-studio/cta-section-12.json"