[RN][iOS] Fix static linking for Bridgeless mode

[cipolleschi]

Summary:

Working with @gabrieldonadel, we realized that static frameworks of the React-RendererRuntime are not following the proper folder structure.
When a user tries to import ReactCommon/RCTHost in the app delegate, for example, the user ends up with an error and they can't find the files.

These changes fixes this by establishing the right folder structure in the static frameworks

Changelog:

[Internal] - Make sure that React-RuntimeCore and JSErrorHandler are created with the proper structure for static frameworks

Test Plan:

Tested locally on an app with 0.74.
Before: it failed to build.
After: it build successfully.

[cipolleschi]

@gabrieldonadel I tested this locally and it works. Do you mind test it yourself as well?

[facebook-github-bot]

@cipolleschi has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[gabrieldonadel]

Hi @cipolleschi, amazing work! I just tested this on Expo's repo and it fixes the issues with importing #import <ReactCommon/RCTHost.h>, thanks!
I'm still facing some issues when importing #import <reacthermes/HermesExecutorFactory.h> but we can address that in another PR

[facebook-github-bot]

@cipolleschi merged this pull request in 0b6b8e2.

[github-actions]

This pull request was successfully merged by @cipolleschi in 0b6b8e2.

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