feat: Add complete favicon package and update copyright

- Added favicon.ico, favicon-16x16.png, favicon-32x32.png (already present)
- Added android-chrome-192x192.png and android-chrome-512x512.png for Android
- Added apple-touch-icon.png for iOS devices
- Added site.webmanifest for PWA support
- Updated footer copyright from "Deep Black Cloud" to "Anthony Rawlins"

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

modules/teaser/app/page.tsx

@@ -47,7 +47,7 @@ export default function HomePage() {
         <div className="max-w-6xl mx-auto">
           <div className="flex flex-col md:flex-row justify-between items-center space-y-4 md:space-y-0">
             <div className="text-carbon-600 dark:text-mulberry-300 text-sm font-medium">
-              © 2025 Deep Black Cloud. All rights reserved.
+              © 2025 Anthony Rawlins. All rights reserved.
             </div>
             
             <div className="flex space-x-chorus-lg text-sm">