Added footer

[MaryamL12]

✨ PR Description

Purpose: Add footer script to HTML template by loading external footer component from CDN alongside existing header script.

Main changes:

• Added footer.js script import from devrelassets CDN with defer attribute for async loading
• Included HTML comment to document both header and footer script imports
• Maintained consistent script loading pattern with existing header implementation

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[gitstream-cm]

✨ PR Review

The PR successfully adds the footer script following the existing pattern. However, the new external script lacks integrity verification which could pose a security risk.

1 issues detected:

🔒 Security - External script loaded without integrity verification creates potential XSS vulnerability

Details: The footer.js script is loaded from an external CDN without Subresource Integrity (SRI) verification. If the CDN is compromised or DNS hijacked, malicious code could be executed in users' browsers without detection.
File: site/app/views/default/index.html

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[gitstream-cm]

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