* Support React 18 concurrency and constraints.
* Add new render / hydrate functions.
* Remove uses of findNodeHandle.
* Expose ability to unmount an application once ran.
Fix#1529Close#2330
Long-press with a touch on a Pressable does not suppress the contextmenu
on Windows. On iOS and Android, the contextmenu is triggered while the
pointer is down, after a certain length of time. However, on Windows,
the contextmenu is displayed after pointerup (with the same timestamp as
pointerup), whether triggered by a mouse right-click or a touch
long-press.
Fix#2296Close#2316