Fix issues in react-native ahead of making `React.ComponentType` an alias of `component(...Props)` (#50180)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/50180

Prepare for the change that makes `React.ComponentType` an alias of `component(...Props)`, which comes with stricter checking and making the props automatically readonly.

Changelog: [Internal]

Reviewed By: gkz

Differential Revision: D71566900

fbshipit-source-id: cefcc10fda9a9777532f25b325412b0d50ebb9b8