function useSolanaKeyExportIframe(options: UseKeyExportIframeOptions): UseKeyExportIframeResult;
A hook for creating a secure iframe to export Solana private keys.This hook handles the communication with a secure iframe that safely
exports Solana private keys to the user’s clipboard without exposing them to the
JavaScript context.The iframe will be automatically cleaned up when the component unmounts
or when the session expires.