Update fun module configuration and enhance CSS styles

- Added 'enabled' property to FunConfigSchema with a default value of true for better configuration management.
- Refactored getFunConfig to return a complete default configuration when no data is found.
- Improved globals.css by expanding CSS variables for light and dark themes, enhancing styling consistency across the application.

apps/webui/tsconfig.json

@@ -10,7 +10,6 @@
     "module": "esnext",
     "moduleResolution": "bundler",
     "resolveJsonModule": true,
-    "resolveJsonModule": true,
     "isolatedModules": true,
     "jsx": "preserve",
     "incremental": true,