AxeDevTools thorws accesssibility issues for grouped Grid

[mbechev]

Description

When the Grid is grouped, AxeDevTools throws an error for the rendered ChipList:

role="none" or role="presentation" removes the element from the accessibility tree, meaning assistive technologies (like screen readers) will ignore it completely.
aria-orientation="horizontal" is an ARIA property that is meant to provide information about the element’s orientation. However, if the element has role="none", it won't be exposed to assistive technologies, making aria-orientation and any other aria attributes useless.

Ensure an element's role supports its ARIA attributes

role='none' issue

aria-selected='false' issue

Steps To Reproduce

1. Open the demo in a new window - https://www.telerik.com/kendo-angular-ui/components/grid/grouping/basics
2. Group the Grid by any field
3. Scan the page with AxeDevTools

Actual Behavior

By default, the ChipList has role="listbox", but has been removed in the scope of the Grid to keep the button roles hierarchy.

aria-selected attribute on the Chip should be revised.

Expected Behavior

When role="none" is applied no other accessibility attributes should be set.