feat: implement label normalization and filtering improvements

[kiwiteaorion]

Enhanced Project Filtering and Label Normalization

Overview

This PR introduces improvements to the project filtering system and label handling, making it easier for users to find projects and reducing tag redundancy.

Changes Made

1. Label Normalization (labelNormalizer.js)

• Added new utility for normalizing project labels/tags
• Consolidated similar tags (e.g., 'js', 'javascript', 'node.js' → 'javascript')
• Maintains original tags in project data while normalizing display
• Reduces tag redundancy without losing information

2. Enhanced Filtering System (filterProjects.js)

• Implemented real-time search filtering
• Added tag-based filtering with project counts
• Combined search and tag filters for better results
• Improved filter performance using normalized labels

3. Code Quality Improvements

• Applied Prettier formatting to all files
• Fixed npm audit issues
• Added Jest testing setup
• Improved code organization

Testing Done

• Verified all existing projects load correctly
• Tested search functionality with various queries
• Confirmed label normalization works as expected
• Ran Prettier on all files
• Added unit tests for new functionality
• Tested in multiple browsers (Chrome, Firefox, Edge)

Screenshots

[Add screenshots here showing:

1. New filter interface
2. Normalized tags
3. Search functionality in action]

Performance Impact

• Improved filter response time
• Reduced duplicate tag entries
• Optimized DOM updates

Breaking Changes

None. All changes are backward compatible with existing project data.

Related Issues

This PR addresses the need for better project discoverability and tag consistency.

Checklist

• Code follows project style guidelines
• All tests pass
• Prettier formatting applied
• No console errors
• Documentation updated
• Mobile-responsive design

Additional Notes

The label normalization system is extensible - new label mappings can be easily added to accommodate future needs.