🎉 Hierarchical Menu System
Features Implemented:
- ✅ Hierarchical menu with unlimited nesting levels
- ✅ Dynamic data loading from database via API
- ✅ Different background colors for each menu level
- ✅ Expand All / Collapse All buttons
- ✅ Click to expand/collapse submenus
- ✅ Click leaf items to navigate to content
- ✅ 100% client-side - no server callbacks
- ✅ Multi-language support with localized titles
- ✅ Smooth animations and hover effects
Color Scheme:
🔵 Level 0 (Top): Light Blue
🟣 Level 1: Light Purple
🟢 Level 2: Light Green
🟠Level 3: Light Orange
⚪ Level 4+: Light Grey
🔵 Level 0 (Top): Light Blue
🟣 Level 1: Light Purple
🟢 Level 2: Light Green
🟠Level 3: Light Orange
⚪ Level 4+: Light Grey