change(ios): make root VC notify on viewDidAppear/-Disappear

[hannojg]

Summary:

Caution

This is based on the following PR which should be merged first:

• feat(ios): RCTViewControllerAppearanceListener #56598

• Adds RCTViewController which implements the notify methods added in feat(ios): RCTViewControllerAppearanceListener #56598
• Changes the root controller & VC wrapper to RCTViewControllers

this is an example for how to use this pattern. It will enable view components to listen to viewDidAppear: events from their parent UIViewControllers.
For react-native core itself this isn't overly relevant, however, for third party navigation libraries such as react-native-screens it is.

Changelog:

[IOS] [CHANGED] - Introduce RCTViewController which implements notification methods for viewDidAppear/-Disappear

Test Plan:

RN Tester works, compiles and runs.

[github-actions]

Warning

JavaScript API change detected

This PR commits an update to ReactNativeApi.d.ts, indicating a change to React Native's public JavaScript API.

• Please include a clear changelog message.
• This change will be subject to additional review.

This change was flagged as: POTENTIALLY_BREAKING