Expose NativeComponentRegistry API to index.d.ts (#54043)

Summary:
Follow up of https://github.com/facebook/react-native/pull/52999 so that users can import `NativeComponentRegistry` from react-native when using typescript

On 0.82 when users try to import `NativeComponentRegistry` without using the Strict TypeScript API they get:
```
Module '"react-native"' has no exported member 'NativeComponentRegistry'.ts(2305)
```

## Changelog:

[GENERAL] [ADDED] - Expose NativeComponentRegistry API to index.d.ts

Pull Request resolved: https://github.com/facebook/react-native/pull/54043

Test Plan: CI should be green

Reviewed By: christophpurrer

Differential Revision: D83830024

Pulled By: huntie

fbshipit-source-id: e63258b30aed4b33b2881656df0ad88a4a7d670a