Improve home page layout and typography

- Fix feature cards layout: 2 columns desktop, 1 mobile with consistent sizing
- Add Google Fonts: Merriweather for headings, Lato for body text
- Improve card content structure and spacing
- Center feature cards and stats section for better alignment
- Group all card content (icon, title, description) in single container
- Set fixed card dimensions (400px max width, 280px height)
- Add text overflow handling for descriptions (3 lines max)

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

package.json

@@ -29,6 +29,7 @@
     "@mui/material": "^7.3.2",
     "@mui/material-nextjs": "^7.3.2",
     "@mui/system": "^7.3.2",
+    "@next/font": "^14.2.15",
     "@prisma/client": "^6.16.2",
     "@radix-ui/react-dialog": "^1.1.15",
     "@radix-ui/react-dropdown-menu": "^2.1.16",