Add example for focus events on Android (#51725)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/51725

This change builds upon the focus/blur portion showcased in ViewExample but showcases several more components all in one spot. This can be shared with additional platforms or expanded to include more component examples like Image, but the goal is to target Android and not distract from the primary use cases.

Changelog: [Internal]

Reviewed By: NickGerleman

Differential Revision: D75747410

fbshipit-source-id: 7d53366d9f32192ca6b3da45dd127836fb6efdf6