(fix/enhancement) Datepicker date type #230

[gselderslaghs]

Proposed changes

Implemented HTML5 input date field support, making use of the input date field would enhance accessibility and follows the RFC 3339 specification

Types of changes

• Bug fix (non-breaking change which fixes an issue).
• New feature (non-breaking change which adds functionality).
• Breaking change (fix or feature that would cause existing functionality to change).

Checklist:

• I have read the CONTRIBUTING document.
• My commit messages follows the conventional commit format
• My change requires a change to the documentation, and updated it accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

[wuda-io]

LGTM. Is the data-date only for displaying the information? I think we can merge it. Thanks!

[gselderslaghs]

LGTM. Is the data-date only for displaying the information? I think we can merge it. Thanks!

@wuda-io, the data-date attribute is used to store the date string in the format defined by options.format and is visually being displayed to the end-user while the value is set in format following the RFC 3339 specification