* refactor: used IsDate validator instead of custom isValidDate function
* fix: used IsDate validator to validate modelValue before it's passed to lion-calendar's selctedDate
* test: Updated lion-input-datepicker tests to include example of handling invalid modelValue
* docs: Updated docs to include example with invalid modelValue
* refactor: updated returned type of __getSyncDownValue method
* changset: updated changeset for @lion/ui
* refactor: linting fix
* refactor: import path updated
Co-authored-by: gerjanvangeest <gerjanvangeest@users.noreply.github.com>
* refactor: label added to Faulty prefilled datepicker input
Co-authored-by: gerjanvangeest <gerjanvangeest@users.noreply.github.com>
* test: updated test to include more obvious invalid date value
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Co-authored-by: gerjanvangeest <gerjanvangeest@users.noreply.github.com>
