Add theme dropdown in settings with Light, Dark, System plus
Zinc, Midnight, Claude, and Ghostty dark variants. Each theme
has its own accent color and surface tints. Desaturate terminal
ANSI colors across all dark themes. Add surfaceSidebarHover
semantic token so hover states go the right direction in both
light and dark modes. Self-heal if a stored theme no longer exists.
- Moved components and hooks into a new directory structure under `src/app` for better organization.
- Updated the main entry point to use `index.ts` and adjusted routing accordingly.
- Introduced new components such as `ActiveProcesses`, `AgentStreamView`, and `ConnectionStatus` to enhance the app's functionality.
- Removed deprecated components and hooks to streamline the codebase.
- Updated styles to align with the new theme structure and ensure consistency across the app.
This refactor aims to improve maintainability and scalability of the application.