feat: implement contributors list pagination handling (#42)

[MayurKharat0390]

Summary

This PR addresses issue #42 by introducing recursive, page-by-page fetching to the GitHub Contributors list API call in src/pages/Contributors.jsx. This ensures the application displays the complete list of contributors for repositories with more than 30 contributors.

Key Changes

• Paginated Fetching Loop (Contributors.jsx):
  • Created a traversal loop fetching per_page=100 contributors at a time.
  • Accumulates records dynamically page-by-page.
  • Loops until it encounters a page with fewer than 100 contributors or reaches a safety cap of 5 pages (500 contributors max) to prevent API rate limiting crashes.
  • Caches the entire consolidated array.

Verification & Testing

• Vite Build: Confirmed npm run build compiles successfully.
• Pagination Mocking: Verified that lists spanning more than 30 items aggregate all pages correctly before updating states and storage caches.

[abhro05]

@MayurKharat0390 Please resolve the conflicts and tag me!