chore(multiviewcalendar): disable outline of focused element telerik/kendo#15502

[veselints]

The MultiViewCalendar k-calendar-view element should be the focusable element of the widget. Its outline, however, should not be visible as the active date is visually the focused element (using aria-activedescendant).

[joneff]

on a serious note, we cannot know which element would be desired for the different suites. to facilitate development, we can have k-no-outline or k-outline-0 that deals with said behaviour.

[veselints]

@joneff The accessibility spec (in progress) requires focus to stay on the k-calendar-view element. Hence, all suites will have to comply with that requirement.
https://github.com/telerik/web-components-ux/pull/516

[joneff]

That wasn't a remark to you as much as it was a remark to us -- for certain scenarios where linear behaviour is require i.e. hide outline on a specific element, such class name would make it much easier.

it will also help determine if the various suites have consciously stepped towards implementing the spec, rather than getting some things "for free".