[NSoC'26] Add Quiz Review Mode with Answer Feedback

[Aishwarya-Anekar]

🔁 Pull Request

[NSoC'26] Add Quiz Review Mode with Answer Feedback

📌 Description

Implemented a Quiz Review Mode that allows users to revisit all answered questions after completing a quiz.

The review section now displays:

• Question prompt
• User-selected answer
• Correct answer
• Timeout status (if applicable)
• Correct/Wrong visual styling

This improves the educational value of the quiz feature by helping users analyze mistakes and review responses after submission.

🔗 Related Issue

Fixes #92

🚀 Type of Change

• [✅] Bug Fix
• [✅] Feature
• [✅] Enhancement
• Documentation

🧪 Testing

Tested locally by:

• Running the quiz flow completely
• Verifying correct and incorrect answer highlighting
• Checking timeout question handling
• Ensuring the review section renders after quiz completion
• Testing UI responsiveness and styling updates

📸 Screenshots

✅ Checklist

• [✅] Code follows guidelines
• [✅] Tested properly
• [✅] Docs updated
• [✅] PR title includes NSoC'26

🌱 NSoC'26 Rule

All PRs must include NSoC'26 in the title.

Example:
[NSoC'26] Add authentication system

[Aishwarya-Anekar]

Merge #94 and #95