Add react-simple-typewriter and integrate in Hero component

- Added `react-simple-typewriter` dependency to project.
- Integrated a typewriter effect in the Hero component for dynamic text.

package.json

@@ -14,7 +14,8 @@
     "next": "15.1.7",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
-    "react-icons": "^5.4.0"
+    "react-icons": "^5.4.0",
+    "react-simple-typewriter": "^5.0.1"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3",