🔒 Fix potential XSS vulnerability in BlogDetails

[Adityavanjre]

🎯 What: This PR fixes a potential Cross-Site Scripting (XSS) vulnerability in BlogDetails.tsx where user-provided or backend-provided post.content was being directly rendered using dangerouslySetInnerHTML.
⚠️ Risk: Without sanitization, an attacker could potentially inject malicious scripts via the content field of a blog post, leading to unauthorized actions, data theft, or session hijacking for users viewing the post.
🛡️ Solution: Introduced DOMPurify, an industry-standard HTML sanitization library, to sanitize the post.content before it is passed to dangerouslySetInnerHTML. This safely strips out any malicious elements like <script> tags or inline event handlers while preserving the legitimate formatting of the blog content.

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PR created automatically by Jules for task 7678126869051397334 started by @Adityavanjre

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📥 Commits

Reviewing files that changed from the base of the PR and between ed4b3ca and 5600383.

⛔ Files ignored due to path filters (1)

• package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (2)

• agency/client/package.json
• agency/client/src/pages/BlogDetails.tsx

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📝 Walkthrough

Walkthrough

This PR adds HTML content sanitization to the blog details page. DOMPurify is introduced as a runtime dependency with type definitions, and the BlogDetails component now sanitizes post content before injecting it into the DOM to prevent XSS vulnerabilities.

Changes

HTML Content Sanitization with DOMPurify

Layer / File(s)	Summary
Dependencies agency/client/package.json	Adds dompurify runtime dependency and @types/dompurify development dependency.
Sanitization Implementation agency/client/src/pages/BlogDetails.tsx	Imports DOMPurify and wraps post.content with DOMPurify.sanitize() before injecting via dangerouslySetInnerHTML.__html.

🎯 2 (Simple) | ⏱️ ~10 minutes

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