- Added a new `HolidayCalendar` component for managing custom and official holidays.
- Integrated holiday type fetching and population logic to streamline holiday management.
- Enhanced UI with modals for creating, editing, and deleting holidays, including validation and user feedback.
- Updated styles for improved visual presentation and user interaction.
- Refactored sidebar and routes to accommodate new component structure and localization updates.
- Added functionality to update the organization's calculation method (hourly or man-days) in the Admin Center.
- Created a new component for managing the calculation method, including UI elements for selection and saving changes.
- Updated API service to handle the new endpoint for updating the calculation method.
- Enhanced localization files to support new keys related to the calculation method settings.
- Introduced a settings page to manage organization working days and hours alongside the calculation method.
