* fix problem with extra space and scroll on settings banner page
* add v-if to windowmanager + prevent focus on slideInPanelManager close button if there is no slide in panel visible
* remove weird trigger-focus-trap on close button
* address flaky e2e tests
* Initial $shell internal-api - Add ModalManager and SlideInPanelManager components
* Use Teleport for Modal and SlideIn managers - Add unit tests
Unit test fix
* Add focus trap and tabindex to Modal and SlideIn managers