Upgrading Blog from v6.2.2 to v7.4.1

[danielmacuare]

📋 Summary

This PR upgrades the Jekyll Chirpy theme from version 6.2.2 to 7.4.1, bringing the blog up to date with the latest features and improvements.

🔧 Changes Made

• Theme Upgrade: Updated from Chirpy v6.2.2 to v7.4.1
• Dependencies: Updated all gems via bundle update
• Configuration Fixes: Resolved YAML syntax error in _data/share.yml
• Image Path Corrections: Fixed broken image references across all posts
• Documentation: Added upgrade.MD guide for future upgrades

🐛 Issues Resolved

1. Native gem compilation errors: Fixed missing gmkdir utility on macOS by installing coreutils
2. YAML syntax error: Corrected malformed inline syntax in share configuration
3. Broken images: Updated image paths from relative to absolute paths (/assets/img/posts/...)

✅ Testing

• Local Jekyll server runs without errors
• All dependencies compile successfully
• Images render correctly on all posts
• Site builds and serves at http://127.0.0.1:4000

📚 Documentation

Added detailed upgrade guide (upgrade.MD) that includes:

• Step-by-step upgrade process
• Troubleshooting common issues
• Rollback procedures
• Post-upgrade verification steps

🔄 Migration Path

This upgrade maintains backward compatibility while bringing new theme features. The upgrade process is documented for future reference and can be safely applied to similar Jekyll Chirpy installations.

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Ready for review and deployment 🚀