我发誓一两年前我做的时候编辑按钮就在那里了。
事实上，正如this Medium article所示，Edit按钮确实存在。然而，同一篇文章还说，编辑按钮实际上并不尊重标签的新顺序，只是重置自己回来。
从文章中，他们提出的解决方案是简单地将UITabController Package 成UIViewControllerRepresentable。
在这里引用他们的代码：

fileprivate struct UITabBarControllerWrapper: UIViewControllerRepresentable {
    var viewControllers: [UIViewController]
    
    func makeUIViewController(context: UIViewControllerRepresentableContext<UITabBarControllerWrapper>) -> UITabBarController {
        let tabBar = UITabBarController()
        
        // Configure Tab Bar here, if needed
        
        return tabBar
    }
    
    func updateUIViewController(_ uiViewController: UITabBarController, context: UIViewControllerRepresentableContext<UITabBarControllerWrapper>) {
        uiViewController.setViewControllers(self.viewControllers, animated: true)
    }
    
    func makeCoordinator() -> Coordinator {
        return Coordinator(self)
    }
    
    class Coordinator: NSObject {
        var parent: UITabBarControllerWrapper
        
        init(_ controller: UITabBarControllerWrapper) {
            self.parent = controller
        }
    }
}

struct UITabBarWrapper: View {
    var controllers: [UIHostingController<TabBarElement>]
    
    @MainActor
    init(_ elements: [TabBarElement]) {
        self.controllers = elements.enumerated().map {
            let hostingController = UIHostingController(rootView: $1)
            
            hostingController.tabBarItem = UITabBarItem(
                title: $1.tabBarElementItem.title,
                image: UIImage.init(systemName: $1.tabBarElementItem.systemImageName),
                tag: $0 // 4
            )
            
            return hostingController
        }
    }
    
    var body: some View {
        UITabBarControllerWrapper(viewControllers: self.controllers)
    }
}

struct TabBarElementItem {
    var title: String
    var systemImageName: String
}

protocol TabBarElementView: View {
    associatedtype Content
    
    var content: Content { get set }
    var tabBarElementItem: TabBarElementItem { get set }
}

struct TabBarElement: TabBarElementView {
    internal var content: AnyView
    
    var tabBarElementItem: TabBarElementItem
    
    init<Content: View>(tabBarElementItem: TabBarElementItem,
         @ViewBuilder _ content: () -> Content) {
        self.tabBarElementItem = tabBarElementItem
        self.content = AnyView(content())
    }
    
    var body: some View { self.content }
}

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在你的情况下，你可以这样使用它：

var body: some View {
    UITabBarWrapper(Tabs.allCases.map { t in
        TabBarElement(tabBarElementItem: .init(title: t.rawValue, systemImageName: t.systemImage)) {
            NavigationView {
                t.body.navigationTitle(t.rawValue)
            }
        }
    })
    
}

型