Replace most of the remaining `React.AbstractComponent` in react-native (#47143)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/47143

In order to adopt react 19's ref-as-prop model, we need to eliminate all the places where they are treated differently. `React.AbstractComponent` is the worst example of this, and we need to eliminate it.

This diff replaces most of the remaining `React.AbstractComponent` in react-native.

Changelog: [Internal]

Reviewed By: alexmckenley

Differential Revision: D64701145

fbshipit-source-id: c765674fdf59812895c4fae43df97cf8b9d24f05