resend/react-email — reverse-engineered prompt

Build me a developer friendly tool for creating and previewing email templates with React and TypeScript. I want people to be able to write emails using simple reusable components like buttons, headings, images, sections, rows, columns, links, markdown, code blocks, and text, without having to think about old table based email markup.

It should make responsive emails easier, handle dark mode, and smooth out weird differences between Gmail, Outlook, Apple Mail, Yahoo, and other common email clients. Include a way to render templates into email ready HTML and plain text so they can be sent through services like Resend, SendGrid, Mailgun, Postmark, Nodemailer, or AWS SES.

Also include a simple editor or playground experience where someone can compose or preview emails visually, then export the result. Keep the components mostly unstyled so users can bring their own design. Use current React Email docs online if you need to check details.