Restructure iOS plugin architecture and update version
- Migrate from Classes/ to Swift Package structure
- Move SwiftHomeIndicatorPlugin.swift to home_indicator/Sources/
- Remove legacy Objective-C bridge files (HomeIndicatorPlugin.h/.m)
- Update podspec to use new Swift Package structure
- Bump version to 2.0.3
- Add FVM configuration and VS Code settings
- Update .gitignore for FVM support
Co-Authored-By: Claude noreply@anthropic.com