Enhance guess number UI

[Devansh-567]

echo "## Guess the Number Game

A fun interactive guessing game built with H2O Wave.

Features

• Guess a number between 1 and 100 with interactive slider.
• Real-time feedback: 'Go Higher' or 'Go Lower'.
• Tracks your number of guesses and game duration.
• Public leaderboard for completed games.
• Private leaderboard for your personal game history.
• Submit completed games to public leaderboard optionally.
• Dark/Light theme toggle.

Updates in This Version

• Prevent guesses after the game is finished.
• Store completed games for optional public submission.
• Show last 10 guesses with ellipsis for clarity.
• Improved messaging on correct guess.
• Refined public and private leaderboard views.
• Theme toggle and initialization logic refactored for smoother UX.
  " > README.md