feat: implement email functionality for contact form

- Add nodemailer dependency for email sending

- Create server action to handle email submissions

- Add email HTML template for formatted messages

- Update contact page to integrate email functionality

package.json

@@ -10,6 +10,10 @@
   },
   "dependencies": {
     "astro": "^5.17.1",
-    "lenis": "^1.3.17"
+    "lenis": "^1.3.17",
+    "nodemailer": "^8.0.1"
+  },
+  "devDependencies": {
+    "@types/nodemailer": "^7.0.11"
   }
 }