feat: update portfolio with new contact form functionality and improved styling

- Removed outdated CV file and replaced with a new image for the profile.
- Implemented a new email service using EmailJS for contact form submissions.
- Enhanced the contact form to handle errors and success messages.
- Updated the About section for grammatical accuracy.
- Modified the Hero component to link to the new CV file and updated GitHub profile link.
- Updated project links to point to the correct GitHub repositories.
- Improved styling for error messages and avatar image with hover effects.

package.json

@@ -10,6 +10,7 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "@emailjs/browser": "^4.4.1",
     "framer-motion": "^12.23.24",
     "lucide-react": "^0.553.0",
     "react": "^19.2.0",