Reject deep imports in internal Flow roots

Summary:
Reject unsupported `react-native/*` deep imports in consumer Flow roots while retaining explicit mappings for supported secondary and internal compatibility entrypoints.

Keep the Jest preset package-internal type imports and the vendored React Native Windows `useMergeRefs` implementation import because package-relative imports across React Native packages are not supported and the latter preserves callback-ref cleanup semantics. Suppress only those intentional package-internal compatibility imports.

Changelog: [Internal]

Reviewed By: javache

Differential Revision: D121377261

Author: rubennorte

packages/jest-preset/jest/mocks/NativeAnimatedHelper.js

@@ -8,6 +8,7 @@
  * @format
  */
 
+// $FlowFixMe[cannot-resolve-module]
 import typeof TNativeAnimatedHelper from 'react-native/src/private/animated/NativeAnimatedHelper';
 
 const NativeAnimatedHelper = jest.requireActual<{

packages/jest-preset/jest/mocks/RendererProxy.js

@@ -10,6 +10,7 @@
 
 // In tests, we can use the default version without dependency injection.
 
+// $FlowFixMe[cannot-resolve-module]
 import typeof * as TRendererImplementation from 'react-native/Libraries/ReactNative/RendererImplementation';
 
 const {