Fix service worker registration path and improve testimonials formatting

[httpdss]

Summary

This PR fixes website deployment issues and improves code formatting in the JavaScript files.

Changes Made

Service Worker Fix

• Fixed service worker registration path from /sw.js to /struct/sw.js
• This ensures proper functionality when the site is deployed to GitHub Pages under the /struct/ path

Code Formatting Improvements

• Improved testimonials formatting with better line breaks and readability
• Standardized quote usage for consistency across the testimonials data
• Updated arrow function syntax for better code consistency

Files Modified

• site/js/advanced.js - Service worker registration path fix
• site/js/phase3.js - Testimonials formatting improvements

Testing

• Service worker path fix addresses GitHub Pages deployment issues
• Code formatting improvements maintain functionality while improving readability
• No breaking changes introduced

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• Code style/formatting improvement
• New feature
• Breaking change
• Documentation update

Checklist

• Code follows the project's style guidelines
• Self-review of code completed
• Changes have been tested locally
• No new warnings or errors introduced
• Commit messages are clear and descriptive

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 66.04%. Comparing base (4d6a1b1) to head (3ef0b55).
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Additional details and impacted files

@@           Coverage Diff           @@
##             main      #73   +/-   ##
=======================================
  Coverage   66.04%   66.04%           
=======================================
  Files          22       22           
  Lines        1240     1240           
  Branches      175      175           
=======================================
  Hits          819      819           
  Misses        384      384           
  Partials       37       37           

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