Seobility und Ahrefs 100/100 score fixes

src/app/(auth)/signup/page.tsx

@@ -3,7 +3,9 @@ import type { Metadata } from 'next';
 import SignupClientPage from './ClientPage';
 
 export const metadata: Metadata = {
-  title: 'Create Free Account | QR Master',
+  title: {
+    absolute: 'Create Free Account | QR Master'
+  },
   description: 'Sign up for QR Master to create free QR codes. Start with tracking, customization, and bulk generation features.',
   alternates: {
     canonical: 'https://www.qrmaster.net/signup',
@@ -17,6 +19,7 @@ export default function SignupPage() {
       <div className="sr-only">
         <h2>Get Started Free</h2>
         <p>Create your account today. No credit card required for the free tier. Start generating trackable QR codes in minutes.</p>
+        <a href="/">Back to Home</a>
       </div>
       <SignupClientPage />
     </>