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.
Adds options for technical date and time formatting and includes the option to show seconds.
Updates time formatting to use UTC-to-local conversion and ensures consistent colon separators for time values.
Adjusts all-day event handling to preserve original start/end times.
Addresses inconsistent time formatting and lack of timezone
handling throughout the application by introducing a
`TimeFormatter` utility.
This class centralizes time formatting logic, providing
timezone conversion (defaults to Europe/Copenhagen) and
support for both 12-hour and 24-hour formats, configurable
via `CalendarConfig`.
It also updates event rendering to utilize the new
`TimeFormatter` for consistent time displays.
