Fix warning in the Xcode project by migrating the development region

[radazzouz]

Details

This was warning in the wrapper's Xcode project.

Acceptance Criteria

• Fix all warnings.
• When approved, right before merging, rebase with master and increment the package version in package.json, package-lock.json, samples/Catalog/package.json, and samples/NativeCatalog/package.json (see example commit: 1bf805f).
• Create a new release (and tag) with the new package version (see https://github.com/PSPDFKit/react-native/releases).

[aksh1t]

LGTM!