BUGFIX: fix swift package error and build erros

[SilverFruity]

➜  Shaft git:(main) swift --version
swift-driver version: 1.115 Apple Swift version 6.0.2 (swiftlang-6.0.2.1.2 clang-1600.0.26.4)
Target: arm64-apple-macosx15.0

swift package error:

➜  Shaft git:(main) swift package plugin setup-skia
error: 'shaft': Invalid manifest (compiled with: ["/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc", "-vfsoverlay", "/var/folders/7j/5sj42sxj6flc1nkf48wh3c_c0000gq/T/TemporaryDirectory.WeuDXi/vfs.yaml", "-L", "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI", "-lPackageDescription", "-Xlinker", "-rpath", "-Xlinker", "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI", "-target", "arm64-apple-macosx13.0", "-sdk", "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.1.sdk", "-F", "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks", "-I", "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib", "-L", "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib", "-swift-version", "5", "-I", "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI", "-sdk", "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.1.sdk", "-package-description-version", "5.9.0", "/Users/jiang/Shaft/Package.swift", "-o", "/var/folders/7j/5sj42sxj6flc1nkf48wh3c_c0000gq/T/TemporaryDirectory.TiB4iT/shaft-manifest"])
/Users/jiang/Shaft/Package.swift:216:9: error: unexpected ',' separator
214 |             //     )
215 |             // ]
216 |         ),
    |         `- error: unexpected ',' separator
217 | 
218 |         .target(

swift build error:

➜  Shaft git:(main) ✗ swift run Playground
Building for debugging...
error: emit-module command failed with exit code 1 (use -v to see invocation)
/Users/jiang/Shaft/Sources/Shaft/Widgets/AppLifecycleListener.swift:312:5: error: unexpected ',' separator
310 |         onRestart: VoidCallback? = nil,
311 |         onDetach: VoidCallback? = nil,
312 |     ) -> Widget {
    |     `- error: unexpected ',' separator
313 |         return AppLifecycleListenerWidget(
314 |             onResume: onResume,