Implement tablet-optimized layouts for the app to support devices with screenWidthDp >= 600.
- Detect tablets and switch to enhanced layouts
- Add multi-column/grid layouts for main screens
- Support master-detail pattern in landscape
- Extend spacing, card, and timer sizing for tablets
- Ensure all interactions and components scale appropriately on larger screens
- Maintain existing style and functionality
Implement tablet-optimized layouts for the app to support devices with screenWidthDp >= 600.