- Consolidate category selection into the main converter card
- Use a space-saving Select component for category switching
- Add category color indicator to the select dropdown
- Delete ConversionHistory component
- Remove history-related logic and state from MainConverter
- Clean up history imports and types in CommandPalette and storage utilities
- Remove history storage functions from lib/units/storage.ts
- Consolidate common utilities (cn, format, time) into lib/utils
- Remove redundant utility files from pastel and units directories
- Clean up unused components (Separator, KeyboardShortcutsHelp)
- Relocate CommandPalette to components/units/ui/
- Force dark mode on landing page and improve theme persistence logic
- Add FOUC prevention script to RootLayout
- Fix sidebar height constraint in AppShell
- 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
