- Harmonize category colors with standard Tailwind CSS 500 shades
- Use Rose, Violet, Emerald, Amber, Blue, and Indigo for grouping related units
- Synchronize hex values in units.ts with OKLCH variables in globals.css
- Add Figlet text converter with font selection and history
- Add Pastel color palette generator and manipulation suite
- Add comprehensive Units converter with category-based logic
- Introduce AppShell with Sidebar and Header for navigation
- Modernize theme system with CSS variables and new animations
- Update project configuration and dependencies
