Bump anchor.js from 4.3 to 5.0 / Bump highlight.js from 11.9 to 11.11

[toshimaru]

This pull request updates third-party dependencies and improves how scripts are initialized on the site. The main changes are version upgrades for highlight.js and anchor-js, and a refactor of the script initialization to use modern event listeners.

Dependency Upgrades:

• Upgraded highlight.js from version 11.9.0 to 11.11.1 in both the stylesheet and script includes in default.html for improved syntax highlighting and bug fixes. [1] [2]
• Upgraded anchor-js from version 4.3.1 to 5.0.0 in default.html for better anchor link support and security improvements.

Script Initialization Improvements:

• Refactored anchor-js initialization in app.js to use DOMContentLoaded instead of jQuery’s document ready, ensuring compatibility with modern browsers and best practices.
• Kept highlight.js initialization under jQuery’s document ready for legacy compatibility.

[Copilot]

Pull Request Overview

This PR updates two JavaScript dependencies (highlight.js and anchor.js) to their latest versions and modernizes the anchor.js initialization to use native DOM events instead of jQuery.

• Upgraded highlight.js from 11.9.0 to 11.11.1 for improved syntax highlighting
• Upgraded anchor.js from 4.3.1 to 5.0.0 for better anchor link functionality
• Refactored anchor.js initialization to use DOMContentLoaded event listener instead of jQuery's document ready

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/_layouts/default.html	Updates CDN links for highlight.js and anchor.js to newer versions
src/assets/js/app.js	Separates anchor.js initialization to use native DOM events while keeping highlight.js under jQuery

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