Naveen f475879408
Properly handle deleting Delete the selected occurrence only
Closes https://github.com/SimpleMobileTools/Simple-Calendar/issues/735

This only happened with all-day recurring events because:
 - `ORIGINAL_INSTANCE_TIME` was not set to a UTC occurrence timestamp and and all-day events always deal in UTC.
 - The `DTSTART`, `DTEND` were set to invalid values because of a missing conversion to milliseconds of start, end timestamps
2023-06-16 03:39:07 +05:30
..
2016-01-26 22:08:27 +01:00
2023-06-10 15:40:33 +02:00