fix: do not use target property from onLayout (#382)

## 📜 Description

Do not use `target` property from `onLayout`.

## 💡 Motivation and Context

In continuation of facebook/react-native#42785
it seems like `target` property is not documented and thus can be
removed at any point of time so it's simply not reliable to use it since
the code can be easily broken in newest RN versions.

So in this PR I started to use `findNodeHandle` and pass a `ref` to get
a view target. Initially I thought that it'll throw a warning in strict
mode, but it looks like this method will throw a warning only if
`findNodeHandle(component)` statement is used. And since I'm passing a
`ref` - it's safe to use such code.

Also I'm still getting `target` property in `onLayout`. Maybe more
optimized version would be to derive a `target` property in `onRef`
handler, but it's further improvements/optimizations (we need to make
changes gradually).

## 📢 Changelog

<!-- High level overview of important changes -->
<!-- For example: fixed status bar manipulation; added new types
declarations; -->
<!-- If your changes don't affect one of platform/language below - then
remove this platform/language -->

### JS

- use `findNodeHandle` in `onLayout` instead of `target` property from
event;

## 🤔 How Has This Been Tested?

Tested paper & Fabric on iOS 17.2 (iPhone 15 simulator).

## 📝 Checklist

- [x] CI successfully passed
- [x] I added new mocks and corresponding unit-tests if library API was
changed

src/components/KeyboardAwareScrollView/index.tsx

@@ -1,5 +1,5 @@
 import React, { forwardRef, useCallback, useMemo } from "react";
-import { useWindowDimensions } from "react-native";
+import { findNodeHandle, useWindowDimensions } from "react-native";
 import Reanimated, {
   interpolate,
   scrollTo,
@@ -121,8 +121,8 @@ const KeyboardAwareScrollView = forwardRef<
       scrollViewAnimatedRef(assignedRef);
     }, []);
     const onScrollViewLayout = useCallback(
-      (e: LayoutChangeEvent & { nativeEvent: { target: number } }) => {
-        scrollViewTarget.value = e.nativeEvent.target;
+      (e: LayoutChangeEvent) => {
+        scrollViewTarget.value = findNodeHandle(scrollViewAnimatedRef.current);
 
         onLayout?.(e);
       },
@@ -319,8 +319,8 @@ const KeyboardAwareScrollView = forwardRef<
       <Reanimated.ScrollView
         ref={onRef}
         {...rest}
-        // @ts-expect-error https://github.com/facebook/react-native/pull/42785
         onLayout={onScrollViewLayout}
+        // @ts-expect-error `onScrollReanimated` is a fake prop needed for reanimated to intercept scroll events
         onScrollReanimated={onScroll}
         scrollEventThrottle={16}
       >