Retrieve a specific form by ID or slug
public, draft, or closed (owner only)id: Unique field identifiername: Field labeltype: Field type (text, email, number, select, etc.)required: Whether the field is requireddefault, simple, notion, minimal, or transparentauto, light, or darksm, md, or lgnone, small, or fullcentered or fullclassic or focusedrecaptcha or hcaptcha (nullable)