[dev-launcher][ios] Fix app launch when using multiple scenes (#24565)

# Why


When configuring an app that uses `UIApplicationSupportsMultipleScenes`,
UIApplication.shared.windows is unable to

[dev-launcher][ios] Fix app launch when using multiple scenes (#24565)

# Why


When configuring an app that uses `UIApplicationSupportsMultipleScenes`,
UIApplication.shared.windows is unable to find any UIWindow causing
ExpoDevLauncherAppDelegateSubscriber to fail to start

https://github.com/expo/expo/blob/284bb8887638b6c52273aea5d234288478ffff66/packages/expo-dev-launcher/ios/ReactDelegateHandler/ExpoDevLauncherAppDelegateSubscriber.swift#L12


Closes https://github.com/expo/expo/issues/23536
Closes ENG-9926

# How

This PR updates AppDelegateSubscriber to attempt to get a window from
`UIApplication.shared.delegate?.window` and then falls back to
`UIApplication.shared.windows` if a window is not located. I also tried
using `UIApplication.shared.connectedScenes` but returns an empty array

# Test Plan

Run dev-client through Bare Expo

<img width="400" alt="image"
src="https://github.com/expo/expo/assets/11707729/9988ab96-c920-4afd-a1a8-201c13c047da">


Run an [example
project](https://github.com/banesp/expo-dev-launcher-keywindow-bug-demo/tree/bare-with-scene-delegates)
using Carplay
<img width="1069" alt="image"
src="https://github.com/expo/expo/assets/11707729/8c3089f3-5842-4658-8ffc-5e1e38277e97">


# Checklist

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- [ ] Documentation is up to date to reflect these changes (eg:
https://docs.expo.dev and README.md).
- [ ] Conforms with the [Documentation Writing Style
Guide](https://github.com/expo/expo/blob/main/guides/Expo%20Documentation%20Writing%20Style%20Guide.md)
- [ ] This diff will work correctly for `npx expo prebuild` & EAS Build
(eg: updated a module plugin).

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