Add new styles for home and landing pages

- Created home.css with comprehensive styles for the home page layout, including typography, buttons, and responsive design adjustments.
- Created landing.css to style the landing page, focusing on typography, layout, and responsive behavior for various screen sizes.

package.json

@@ -35,6 +35,7 @@
     "@types/react": "^19",
     "@types/react-dom": "^19",
     "drizzle-kit": "^0.31.10",
+    "happy-dom": "^20.14.0",
     "tailwindcss": "^4.1.11",
     "typescript": "^7.0.2"
   }