feat: add Cloud Computing chapter content with all units

[Vidhi788]

Related Issue

Fixes
129

Description

Describe the changes made in this PR.
Added a complete Cloud Computing subject to the openCSE platform.
This includes a full course outline, chapter-wise content pages, and
detailed explanations for all topics. The subject covers everything from
basics of cloud to advanced topics like Kubernetes, Docker, AWS, Azure,
and GCP.

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Type of Change

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

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Screenshots / Demo

The Cloud Computing subject is fully accessible via the subject navigation.
Each chapter loads correctly with proper styling, sidebar navigation,
Previous/Next buttons, and responsive layout consistent with other subjects
on the platform.

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How Has This Been Tested?

• Ran the project locally using npm run dev
• Navigated through every chapter from Course Outline to Managing Cloud Containers
• Verified Previous and Next buttons work correctly across all chapters
• Confirmed sidebar highlights the active chapter correctly
• Checked that the layout, fonts, and colors are consistent with existing subjects
• No console errors observed during local testing

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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 not used AI tools for this contribution

• 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:

AI was used only for minor help with code formatting and component
structure. All chapter content — including topic explanations, unit
breakdowns, key characteristics, real-world examples, and detailed notes —
was written by me based on my own handwritten class notes and study
material. The syllabus structure, factual explanations, and educational
content are entirely my own work. AI was not used to generate any course
content or chapter text.

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Additional Notes

This is a complete new subject addition, not a modification of any
existing subject.

• The content is beginner-friendly and suitable for CSE students studying
  Cloud Computing as part of their curriculum.
• Future improvements could include adding quiz questions, code examples,
  and diagrams for topics like VPC architecture and Kubernetes cluster setup.
• Open to feedback on structure or content improvements from the maintainer.

[vercel]

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