Change Animated re-export to generate correct namespace in TS (#50222)

Summary:
Pull Request resolved: #50222

The flow-api-translator will generate

```ts
export * as default from './AnimatedExports';
```

in TS which preserves the namespace. Previous import, export translated to:

```ts
declare const $$EXPORT_DEFAULT_DECLARATION$$: typeof Animated;
declare type $$EXPORT_DEFAULT_DECLARATION$$ =
  typeof $$EXPORT_DEFAULT_DECLARATION$$;
export default $$EXPORT_DEFAULT_DECLARATION$$;
```

which dropped the `Animated` namespace.

Changelog:
[Internal]

Reviewed By: huntie

Differential Revision: D71737199

fbshipit-source-id: a46a7ddddd023fa831cd4bb50f17a0641f328066

Author: coado

packages/react-native/Libraries/Animated/Animated.js.flow

@@ -9,7 +9,5 @@
  * @oncall react_native
  */
 
-import * as Animated from './AnimatedExports';
-
+export * as default from './AnimatedExports';
 export type {CompositeAnimation, Numeric} from './AnimatedImplementation';
-export default Animated;

packages/react-native/Libraries/__tests__/__snapshots__/public-api-test.js.snap

@@ -118,8 +118,8 @@ declare export default typeof Animated;
 `;
 
 exports[`public API should not change unintentionally Libraries/Animated/Animated.js.flow 1`] = `
-"export type { CompositeAnimation, Numeric } from \\"./AnimatedImplementation\\";
-declare export default typeof Animated;
+"export * as default from \\"./AnimatedExports\\";
+export type { CompositeAnimation, Numeric } from \\"./AnimatedImplementation\\";
 "
 `;