Challenges page

[Ishuuu1213]

No description provided.

[greptile-apps]

Greptile Summary

This PR implements a dedicated challenges page feature that transitions CodeClip from a single-page application to a multi-page structure. The main changes include:

1. New Challenges Page Integration: Updates the navigation in index.html to link to a dedicated pages/challenges.html file instead of using hash-based navigation, moving away from the single-page app pattern.

2. Enhanced Challenge Execution Options: Adds "Run in JS Executor" buttons to all four challenge cards in pages/challenges.html, providing users with access to a more sophisticated multi-language code execution environment that uses the Judge0 API and supports 75+ programming languages, complementing the existing basic editor option.

3. Leaderboard Reset: Clears all existing contributor data from LEADERBOARD.md, removing 36 contributors' achievements and replacing them with a "No contributors yet" placeholder.

The changes align with CodeClip's goal of providing comprehensive coding practice tools by offering users choice between a simple editor and a full-featured execution environment. The new challenges page structure allows for better organization of challenge-related functionality with individual challenge cards, filtering capabilities, and multiple interaction options.

Confidence score: 2/5

• This PR has significant issues that will likely cause immediate problems in production, particularly with navigation and data loss.
• The navigation path uses a repository-specific relative path that will break in most deployment scenarios, and the leaderboard reset removes valuable contributor data that conflicts with the automated regeneration system.
• All files need attention, but index.html and LEADERBOARD.md require immediate fixes before merging.

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[Ishuuu1213]

@adityai0 Sir it will close issue number #262