Function showModal

apps/web/ui/JoinButton/JoinLinen/index.tsx:25–35

(
    event: React.MouseEvent<HTMLAnchorElement>,
    flow: 'signin' | 'signup'
  )

  api,
}: Props) {
  const showModal = async (
    event: React.MouseEvent<HTMLAnchorElement>,
    flow: 'signin' | 'signup'
  ) => {
    event.preventDefault();
    event.stopPropagation();
    startSignUp?.({
      flow,
      communityId: accountId,
    });
  };

  async function joinCommunity(
    event: React.MouseEvent<HTMLAnchorElement, MouseEvent>