- Renamed `ServiceSelect` to `ServicesSelect` for clarity.
- Updated state management to handle multiple service IDs instead of a single service ID.
- Adjusted related components (`DateSelect`, `TimeSelect`, `SubmitButton`, and `NextButton`) to accommodate the new services structure.
- Removed the deprecated `service-select.tsx` file and refactored related logic in the order store and API to support multiple services.
- Enhanced error handling in the slots service to validate multiple services correctly.