Pinch gesture focal point is NAN for iPad trackpad

[DImuthuUpe]

Description

When I use track pad for pinch gesture, the focal point is provided as NaN. Is that the expected behavior?

Steps to reproduce

import * as React from 'react';
import { View } from 'react-native';
import { Gesture, GestureDetector, GestureHandlerRootView } from 'react-native-gesture-handler';

const pinchGesture = Gesture.Pinch().onUpdate((e) => {
  console.log(e);
});

export default function App() {
  return (
    <GestureHandlerRootView style={{ flex: 1 }}>
      <View style={{ flex: 1, backgroundColor: 'white' }}>
        <GestureDetector gesture={pinchGesture}>
          <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center' }}>
          </View>
        </GestureDetector>
      </View>
    </GestureHandlerRootView>
  );
}

Output of the above code for pinch gesture from apple track pad is.

{ target: 2472,
  focalX: NaN,
  focalY: NaN,
  pointerType: 0,
  handlerTag: 3,
  velocity: 0.03992123938096699,
  numberOfPointers: 0,
  state: 4,
  scale: 1.11993408203125,
  eventName: 'onGestureHandlerEvent',
  scaleChange: 1 }

A link to a Gist, an Expo Snack or a link to a repository based on this template that reproduces the bug.

https://gist.github.com/DImuthuUpe/ef97e4bc4cab7557b0774c6a9e6f4a4e

Gesture Handler version

2.26.0

React Native version

0.78.0

Platforms

iOS

JavaScript runtime

None

Workflow

None

Architecture

None

Build type

None

Device

None

Device model

No response

Acknowledgements

Yes

[DImuthuUpe]

Fixed in #3865. Pls review