Backport of https://github.com/software-mansion/react-native-reanimated/pull/9901 ("refactor(LayoutAnimations): stop taking over UIManagerAnimationDelegate").
Reanimated's legacy LayoutAnimationsProxy_Legacy registered itself as the
UIManagerAnimationDelegate only to receive stopSurface. Occupying that slot
overwrites the LayoutAnimationDriver that React Native installs there, which
silently breaks LayoutAnimation.configureNext for the whole app.
The patch makes the proxy detect surface teardown itself via a
UIManagerCommitHook (a commit with an empty root marks the surface in
surfacesToRemove_), frees the animation-delegate slot, and drops final
keyframe Update mutations for views deleted in the same transaction (a
deterministic configureNext delete-animation crash found in this app).
uiManager moves from Android-only to shared constructor args since the hook
registration needs it on both platforms.
Only the packages/react-native-reanimated part of the PR is included (the
apps/fabric-example hunk is not part of the published package), and the hunks
were rebased onto the 4.5.3 release sources.
Note that upstream's own pullTransaction rework in 4.5.3 (the new
reconcileContradictedRemovals) covers a different case - a Create/Insert
contradicting a withheld exit removal - and does not subsume the deleted-tag
Update filter here, which guards against the LayoutAnimationDriver final
keyframe. That driver only runs at all once this patch frees the delegate slot.