fix: missing types of datepicker

[riddhybansal]

Closes #16084

Some of the typings for the DatePicker component that are passed directly to flatpickr are incomplete (missing some of the possible types), meaning that Typescript can add a warning/error to a provided prop even though the value is valid to flatpickr.

Changelog

New

• {{new thing}}

Changed

• Types of enable, disable, minDate, maxDate

Testing / Reviewing

Try assigning value of type date to enable, disable , minDate and maxDate (eg : enable={[(date) => ![0, 6].includes(date.getDay())]} , minDate={new Date()}, disable={[
{
from: new Date().setDate(new Date().getDate() - 3),
to: new Date().setDate(new Date().getDate() + 3),
},
]} )

Typescript compiler should not give error.

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[2nikhiltom]

LGTM 🚀