- Implemented _formatPrice function for consistent price formatting.
- Added projectorEndStartCallback to handle size selection and price updates.
- Integrated availability notifications and user interaction for product sizes.
- Created CountdownTimer class for promotional countdowns.
- Developed StationaryPanel class for managing pickup point searches and geolocation.
- Included error handling for API requests and user input validation.
- Enhanced user experience with tooltips and dynamic content updates.
