如何在SwiftUI中增加网格中的填充？

import SwiftUI

struct ContentView: View {
    let gridItems = [GridItem(), GridItem(), GridItem()]
    
    var body: some View {
        ScrollView {
            LazyVGrid(columns: gridItems, spacing: 10) {
                ForEach(0..<9) { index in
                    Text("Item \(index)")
                        .frame(maxWidth: .infinity, maxHeight: .infinity)
                        .background(Color.blue)
                        .foregroundColor(.white)
                }
            }
            .padding() // 添加填充
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}