Revise Prop Types Error Message (#34392)
Revise Prop Types Error Message (#34392)

Summary:
Improves upon the existing prop types error messages to first recommend migrating to a type system (before recommending the usage of `deprecated-react-native-prop-types`).

## Changelog

[General][Changed] - Minor change to PropTypes error message.

Pull Request resolved: https://github.com/facebook/react-native/pull/34392

Test Plan: Careful code inspection.

Reviewed By: rickhanlonii

Differential Revision: D38632723

Pulled By: yungsters

fbshipit-source-id: 88e44116475c7d93bc561c9ab6883855d6d79a7e

janicduplessis/react-native,janicduplessis/react-native,javache/react-native,facebook/react-native,facebook/react-native,janicduplessis/react-native,javache/react-native,javache/react-native,javache/react-native,janicduplessis/react-native,javache/react-native,janicduplessis/react-native,janicduplessis/react-native,facebook/react-native,janicduplessis/react-native,facebook/react-native,facebook/react-native,javache/react-native,javache/react-native,javache/react-native,facebook/react-native,javache/react-native,facebook/react-native,janicduplessis/react-native,facebook/react-native,facebook/react-native