Add Calendar/Datepicker component

[JeemBeen]

Clear and concise description of the problem

Add a calendar/datepicker component like in Framework7.
-> https://framework7.io/docs/calendar

Suggested solution

A solution like the calendar/datepicker in Framework 7, which is easy to use, is the way to go.

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

Would you like to open a PR for this feature?

• I'm willing to open a PR

[Why-Not-Us]

Hi @aadrian is there any way to get this prioritized? Framework7's Datepicker is the only fully-featured mobile-esque datepicker available and it'd be great to use it in Konsta. As far as I know, there is no way to use Framework7 components without integrating the entire framework.

Alternatively, are there any guidelines on how to migrate a component from Framework7 into KonstaUI? @JeemBeen I'd be happy to collaborate if this looks viable