Chnages to submitted code to use gov.uk styles where possible. Updates component to being fixed
width by default, allowing users to either provide an alternative width class or remove it to have a
fluid input.

Amends the styles of the submitted datepicker to match the tweaked design for inclusion in the
Design System. Renames some classes to be slightly more consistent with BEM style. Reformat css file
to remove nesting to conform to GDS recommended style.

…ancement

This PR moves the calendar popup toggle from in the template to within the JS, as the button
shouldn't show up unless JS is available to toggle the popup dialog.  Improvements were made to the
accessible labelling of the table headers and the individual day buttons to aid screenreader users.

Allow for disabling of arbitrary dates using the data-disableddays param. Also disable specific days
of the week using the data-disableddays param. e.g. disable all weekends with
`data-disableddays="saturday sunday"`

…e/moj-frontend into add-date-picker

…er component guidance

…d dates are handles

…signs

Add config option for whether or not the date inserted into the field on selection has leadingzeros
for days and months

Allows a weekStartDay option to be passed to the component to configure whether weeks start on a
monday or sunday

In order to make it easier to disabled a block of dates it is now possible to pass date ranges in
the format "19/7/2024-26/7/24" in the disabledDates parameter

Copying the assets directory is no longer needed as the assets are now within the docs directory

The previous template resulted in nested moj-form-group elements causing issues with error states.
The template has now been refactored to more fully utilise the govuk-input macro and  use the
govuk-attributes macro too to impriove and simplify the external api to the component.

Extract some js into functions for slightly improved readability

…t design review

…idance

…h the date picker

Changes to content

Refine content ready for release.

…y review

* add aria-expanded attribute onto calendar toggle button
* add "excluded date" assisteive text to excluded dates
* update excluded dates example to show both individual dates and days
* reformat code to follow convention of element variables having a $ prefix

…e/moj-frontend into add-date-picker

… via data-attributes

This change updates the component to allow for component properties such as minDate, maxDate and
excludedDates/Days to be passed in via the JS config object. This follows the GDS convention where
component defaults are overridden by the JS config, which is overridden by data attributes. The code
to do this is largely borrowed from GOV.UK frontend.  Also added in this commit are JSDoc comments
for all functions with arguments.

…ample

… colors to darker grey

Ensure metting WCAG color contrast rules by amending hover color, and add strikethrough for clarity
of meaning on excluded dates

…ny redundant links on the page

This was raised in an accessibility review by Ben Proctor-Rogers.  Each of the example links on the
page has the same label, which is not a good experience for screen reader users. This change adds
the example title to the link as visually hidden text.

This reverts commit a004155.

Adjustments in response to code review

Updated content on accessibility for excluded dates.

…e/moj-frontend into add-date-picker

Content tweaks

Correcting typo

Remove greyed out content which is a comment.

Updates the CSS classes to have only one block root per component.  Also updates to follw GOV.UK
recomended convention of preferring sass variables instead of colour functions where available.

The regex for a date was duplicated in the code.  It wasn't necessary to wrap getting the date in
the input in a conditional due to the fact that fomattedDateFromString falls back to todays date
meaning if there is no date in the input or the input contains an invalid date, it will fall back to
setting the currentDate for the calendar to today, which is what is required.

The 'esc' keydown event listener was attached to the calendarDayButton instance(s) meaning that
escape would only close the modal if one of the calendar days was focused. Escape should clode the
dialog wherever you are focused within it.  Moving the listener onto the parent element fixes this
bug.

New content about server side validation for text inputs.

…e/moj-frontend into add-date-picker

…and max date