Clear default dates in range and multiple picker.

[zeiasoroush]

when passing an empty list to some-calendar you select the
default dates value(DateTime.now()+4 days).I want to clear the default selected dates.
and let User select dates.
To Reproduce
Steps to reproduce the behavior:
1.SomeCalendar(
primaryColor: Color(0xff5833A5),
mode: SomeMode.Multi,
scrollDirection: Axis.vertical,
isWithoutDialog: true,
selectedDates: selectedDates,
selectedDate: selectedDate,
startDate: Jiffy().subtract(years: 3),
lastDate: Jiffy().add(months: 9),
done: (date) {},
),

[agryva]

Hii @zeiasoroush
for the "somecalendar" range mode we deliberately provide a default date to reduce user confusion when using this calendar .
a solution, you might be able to provide users with information before using this calendar that the start date is only an initial value Thanks 😄