在SwiftUI中，如何将primaryAction ToolbarItem加粗？

import SwiftUI

struct BoldToolbarItemStyle: ToolbarItemStyle {
    func makeBody(configuration: Configuration) -> some View {
        configuration.label
            .font(.headline) // 使用加粗字体
            .foregroundColor(.primary) // 设置文本颜色
    }
}

extension ToolbarItem where Style == DefaultToolbarItemStyle {
    static var bold: ToolbarItem {
        ToolbarItem(style: BoldToolbarItemStyle())
    }
}

struct ContentView: View {
    var body: some View {
        VStack {
            Text("Hello, SwiftUI!")
        }
        .toolbar {
            ToolbarItemGroup(placement: .primaryAction) {
                Button(action: {
                    print("Primary action triggered")
                }) {
                    Text("Bold Action")
                        .boldToolbarItem() // 应用自定义样式
                }
            }
        }
    }
}

@main
struct MyApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}