feat(ui): implement mobile navigation and rotating text

Add a responsive mobile navigation menu to the `Header` component, allowing users to easily access different sections of the portfolio on smaller screens. This includes a toggle button for opening/closing the menu and smooth animations for its appearance.

Introduce a `RotatingText` component in the `Hero` section to dynamically display different professional titles, enhancing the visual appeal and conveying diverse skills.

Update `package.json` to include `framer-motion` as a dependency, which is utilized for the new animations.

package.json

@@ -13,6 +13,7 @@
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "cobe": "^0.6.4",
+    "framer-motion": "^12.23.12",
     "gsap": "^3.13.0",
     "lucide-react": "^0.542.0",
     "motion": "^12.23.12",