Minor changes
- fix selected semantics and scroll-to-view on Combobox, remove select-on-hover behavior, remove unneeded aria-checked on checkbox (PR #19344 by smhigley)
Patches
- Set active descendant for no results found (PR #19606 by GeoffCoxMSFT)
- Put layer mount events after DOM updated. (PR #19669 by GeoffCoxMSFT)