Improves date validation and adds flexible date/time formatting capabilities.
The date validation is updated to return a boolean and is incorporated directly into calling functions to throw errors, improving code readability and maintainability. DateService is extended with functions for formatting time in 12-hour format, getting day names, and formatting date ranges with customizable options.
Adds DateService using date-fns-tz for robust time zone
conversions and date manipulations.
Refactors DateCalculator and TimeFormatter to utilize the
DateService, centralizing date logic and ensuring consistent
time zone handling throughout the application.
Improves event dragging by updating time displays and data
attributes, handling cross-midnight events correctly.
