docs: add comprehensive educational content for algorithm design and analysis

[Aarush-Pradhan]

Related Issue

Fixes #84

Description

This PR adds Algorithm Design and Analysis (ADA) notes under the Sem 5 ADA module.
It includes structured chapter-wise documentation with beginner-friendly explanations for core DSA concepts such as:

• Introduction to Algorithms
• Time and Space Complexity
• Searching and Sorting Algorithms
• Divide and Conquer Technique

The content is integrated into the existing Next.js documentation structure and follows the project’s modular chapter-based design.

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Type of Change

• Bug fix
• New feature
• Documentation update
• UI/UX improvement
• Refactor

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Screenshots / Demo

UI shows ADA course page with chapter-wise navigation working correctly.

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How Has This Been Tested?

• Verified locally using npm run dev
• Tested chapter navigation (Previous/Next buttons)
• Checked routing consistency under /sem5/ada2/[chapter]
• Ensured all chapter content renders properly without “Notes not found” errors

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Checklist

• My code follows the project structure and conventions
• I have tested the changes locally
• I have linked the related issue properly
• I have added screenshots where applicable
• No existing functionality was broken

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AI Usage

• I have used AI tools (ChatGPT, Copilot, Claude, etc.) and I have reviewed, verified, and understood all generated code/content before submitting this PR

If AI tools were used, briefly explain how:

Used ChatGPT for debugging routing issues in Next.js, fixing chapter navigation links.

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Additional Notes

This PR improves the ADA documentation module and ensures proper routing consistency across all chapters.

[vercel]

@Aarush-Pradhan is attempting to deploy a commit to the PushkarScripts Team on Vercel.

A member of the Team first needs to authorize it.