feat: add typewriter animation effect to hero text

- Added typewriter-effect package for animated text rendering
- Implemented sequential typing animation for welcome message and signature
- Added client-side rendering check to prevent hydration issues
- Adjusted text opacity and timing delays for better readability
- Created invisible placeholder text to maintain layout during animation loading

package.json

@@ -33,7 +33,8 @@
     "react-use-measure": "^2.1.7",
     "slick-carousel": "^1.8.1",
     "swiper": "^11.1.7",
-    "tailwindcss": "^3.4.6"
+    "tailwindcss": "^3.4.6",
+    "typewriter-effect": "^2.22.0"
   },
   "devDependencies": {
     "eslint": "^8.56.0",