docs(PPDSC-2657): make sidebar drawer dismissed when click on the menuItem

[Xin00163]

PPDSC-2657

Burger menu should close when current page reselected (by clicking on the item for the current page on the burger menu).
Instead, it sends events and the menu stays open.

This fix is to update the state when a menuItem is clicked.

I have done:

• Written unit tests against changes
• Written functional tests against the component and/or NewsKit site
• Updated relevant documentation

I have tested manually:

• The feature's functionality is working as expected on Chrome, Firefox, Safari and Edge
• The screen reader reads and flows through the elements as expected.
• There are no new errors in the browser console coming from this PR.
• When visual test is not added, it renders correctly on different browsers and mobile viewports (Safari, Firefox, small mobile viewport, tablet)
• The Playground feature is working as expected

Before:

After:

Who should review this PR:

How to test:

[newskit-engineering]

You can preview these changes on:
Documentation Site: http://ncu-newskit-docs.s3-website-eu-west-1.amazonaws.com/ppdsc-2657-burger-menu-drawer-dismiss
Storybook: http://ncu-newskit-docs.s3-website-eu-west-1.amazonaws.com/ppdsc-2657-burger-menu-drawer-dismiss/storybook

[baburay23]

nice!