Fix onEndReached not firing sometimes on web (#4728)

* handle off screen visibility observer.

* Revert "handle off screen visibility observer."

This reverts commit e499ea0ed66b31964f79261b41f58a288b0cdb6f.

* key ftw

* Remove special case

---------

Co-authored-by: Dan Abramov <dan.abramov@gmail.com>

src/view/com/util/List.web.tsx

@@ -365,6 +365,7 @@ function ListImpl<ItemT>(
             root={containWeb ? nativeRef : null}
             onVisibleChange={onTailVisibilityChange}
             bottomMargin={(onEndReachedThreshold ?? 0) * 100 + '%'}
+            key={data?.length}
           />
         )}
         {footerComponent}