- Add global theme state in App.tsx with localStorage persistence
- Implement dark mode CSS variables in index.css
- Add theme toggle button in sidebar navigation
- Update Dashboard with dark mode support for stats cards and badges
- Update Settings page with dark mode for main layout and toggles
This implements the core dark mode functionality with separation of
concerns - theme state is managed globally in App.tsx and passed down
to child components as props.
Hitonabi
43dfce5233