- Deleted Gruntfile.js to streamline the build process.
- Updated package.json to include new npm scripts for build, clean, and watch tasks.
- Added dependencies for concurrent execution and CSRF token management.
- Integrated csrf-sync for improved CSRF protection in the application.
- Refactored app and API client to utilize the new CSRF token management approach.
- Introduced new appearance settings page with a dark mode toggle feature.
- Added localization support for English, Spanish, and Portuguese in appearance settings.
- Removed the ThemeSelector component and updated PreferenceSelector accordingly.
