Update frontend dependencies, enhance Vite configuration, and refactor components

- Added new dependencies including @base-ui/react, @fontsource-variable/geist, and tailwindcss for improved UI and styling.
- Updated Vite configuration to include path aliasing for easier imports.
- Refactored App.jsx to implement a theme context and improved routing structure.
- Enhanced various components (e.g., ConfirmDialog, DataTable) to utilize new UI components and improve user experience.
- Cleaned up CSS imports and ensured proper styling integration.

Made-with: Cursor

.cursor/settings.json

@@ -0,0 +1,7 @@
+{
+  "plugins": {
+    "shadcn": {
+      "enabled": true
+    }
+  }
+}