style: restore tagline to title and use default for landing page

src/app/(public)/page.tsx

@@ -2,7 +2,6 @@ import { Metadata } from "next";
 import HomeClient from "./HomeClient";
 
 export const metadata: Metadata = {
-  title: "Home",
   description: "Advanced Certificate Authority and PKI Management System. Issue and manage SSL/TLS certificates and API keys with ease.",
 };