Import advanced TypeScript topics and update routing in TypeScriptEssentials component

[Vanshika814]

---

name: "📦 Pull Request"
about: Submit changes for review
title: "PR: Added advanced topics in the typescript essentials notes page"
labels: "Enhancement
Level 3
GSSOC 2025
frontend
hacktoberfest"
assignees: "Vanshika814"

📌 Linked Issue

• Connected to Add Topics : Advanced Types, Union, Intersection, enums, Literal #608

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🛠 Changes Made

• Added: dds the Advanced Types section to TypeScript Essentials, covering unions, intersections, literals, enums, generics, and utility types.
• Updated: Wired imports and routes in TypeScriptEssentials.jsx

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✅ Checklist

• Created a new branch for PR
• Have stared the repository
• Follows JavaScript Styleguide
• No console warnings/errors
• Commit messages follow Git Guidelines

💡 Additional Notes (If any)

[netlify]

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[github-actions]

Thanks for creating a PR for your Issue! ☺️

We'll review it as soon as possible.
In the meantime, please double-check the file changes and ensure that all commits are accurate.

If there are any unresolved review comments, feel free to resolve them. Thank you @Roshansuthar1105 🙌🏼