Placeholder: static marketing homepage

Nothing is broken. In production, the web stack serves / on the .com domain from a static page that lives outside this application, and that the marketing team maintains on their own. This placeholder stands in for that page outside of production, so that local development doesn't show the application homepage at a URL where the .com site doesn't serve it.

The application homepage is at https://t.clients.p19.dev/home, which is where the static marketing page links.