Landing - my position in the leaderboard

User story

As a contributor, I want to see my position in the leaderboard, so that I can track my progress and see how I compare to other contributors.

[ ] Ensure the contributor’s current position is immediately visible upon accessing the leaderboard. This could be highlighted through a different color or a visual marker.
[ ] The leaderboard should automatically scroll to or highlight the contributor’s position if they are not in the top entries visible upon initial load.
[ ] Display detailed information next to the contributor’s name, including their score, rank, and brief statistics on their contributions (e.g., number of contributions, the highest score received).