Add Swift Package Manager support for iOS #9
Description
Summary
Flutter is deprecating CocoaPods-based plugin integration and will require Swift Package Manager (SPM) in a future version. Currently, fjs triggers the following warning at build time:
The following plugins do not support Swift Package Manager for ios:
- fjs
This will become an error in a future version of Flutter.
Context
- Flutter's SPM migration guide: https://docs.flutter.dev/packages-and-plugins/swift-package-manager/for-plugin-authors
- This is currently a warning but will become a build error in a future Flutter release
Environment
- fjs v2.1.0
- Flutter 3.x (stable)
- iOS deployment
Thanks for the great package!