- Add comprehensive file extension mappings organized by category (text, web, programming, data, config, shell, documents, images, audio, video, archives, fonts)
- Add support for 100+ file extensions including modern languages (Rust, Go, Swift, Kotlin, Zig, etc.)
- Add media file support (images, audio, video) with appropriate icons
- Add archive and font file type mappings
- Replace hardcoded SVG in dashboard cards with dynamic icon