copy(marketing): update hero headline and sub-headline

vibn-frontend/marketing/components/new-site/index.tsx

@@ -1118,18 +1118,14 @@ function Hero({ onStart, variant = "quote" }) {
         {variant === "promise" ? (
           <>
             <h1 className="hero-quote">
-              Keep <span className="mark">vibing</span>.
-              <br />
-              All the way to launch.
+              Every small business deserves their{" "}
+              <span className="mark">perfect tool</span>.
             </h1>
             <div className="hero-attribution mono">
               idea → live → marketed → customers
             </div>
             <p className="hero-sub">
-              <b>Build it. Go Live. Find Users.</b>
-              <br />
-              Your AI handles the technical stuff, puts your idea online, and
-              helps you find customers. No extra tools. No headaches.
+              Vibn is the platform for people building them.
             </p>
           </>
         ) : (