✨ Add navigation menu with Hall of Fame page for top contributors

[0GiS0]

✨ Feature Request

Add a navigation header/menu to the site that includes:

1. Link to the Home page (current repository catalog)
2. Link to a new Hall of Fame page showcasing top contributors across the DevExpGbb organization

📍 Current Behavior

• No navigation menu exists
• Only a single homepage with the repository catalog
• Contributors are only shown per-repository on cards

✅ Expected Behavior

Navigation Menu

• Sticky/fixed header with site logo and navigation links
• Links: Home | Hall of Fame
• Responsive design (hamburger menu on mobile)
• Consistent across all pages

Hall of Fame Page (/hall-of-fame)

• Display top contributors across ALL repositories in the org
• Aggregate contribution data (commits, PRs, reviews)
• Show contributor cards with:
  • Avatar (larger than on repo cards)
  • GitHub username (linked to profile)
  • Total contributions count
  • Top repositories they contribute to
  • Optional: badges for achievements (🏆 Most Active, 🌟 Rising Star, etc.)
• Leaderboard or grid layout
• Link to each contributor's GitHub profile

📋 Acceptance Criteria

Navigation

• Header component created with logo and nav links
• Home link navigates to /
• Hall of Fame link navigates to /hall-of-fame
• Mobile responsive with hamburger menu
• Header included in Layout component

Hall of Fame Page

• New page at /hall-of-fame
• Fetches/aggregates contributor data from all repos
• Displays contributors sorted by total contributions
• Each contributor card shows avatar, username, contribution count
• Clicking avatar/name opens GitHub profile
• Responsive grid layout

🔧 Technical Notes

• May need to update refresh-data.yml workflow to aggregate contributor data
• Consider caching contributor data to avoid rate limits
• Could use GitHub's GraphQL API for efficient data fetching

🎨 Design Inspiration

• GitHub's contributor graphs
• Open source project contributor pages
• Gaming-style leaderboards with ranks and badges