Complete modernization of the interactive organization chart!
### Key Features
- **Modern Tech Stack**: Upgraded Nuxt 2 (Vue 2) -> Vue 3 + Vite + Vuex 4.
- **Offline Single-File**: App compiled fully inlined inside `docs/index.html`. Double-click to run offline!
- **Beautiful Light/Dark System**: Premium harmonies, smooth 0.25s animations, Sun/Moon toggler.
- **Startup Settings Option**: Added checkbox "Start in Dark Mode" to customize default view.
- **Visual Enhancements**: Sleek glassmorphic sidebar, card transforms, accent-glow highlights, and rounded scrollbars.
