SwiftUI pass elements of an array as bindings to subview

I try to make my first iOS app and I have the following issue and I cannot understand how to solve it. I have a tabbed MainPageView where I load all the data and then pass it through different views. When I add new Item in the Task view the new item appear in list, but I want to update also the TaskView when something happens like using contextmenu to mark a task as completed

The task struct:

struct Task: Identifiable, Hashable {
     var name: String = ""
     var status: Bool = false
     var notify: Bool = false

The MainPageView - here the tasks are under a Firebase observe so it should update automatically when changes are done in the database

struct MainPageView: View {
     @State private var tasks: [Task] = []
     ...
     var body: Some View{
          TabView{
             TaskPageView(tasklist: self.$tasks) ...

The TaskPageView

struct TaskPageView: View {
     @Binding var tasklist: [Task]
     ...
     var body: some View{
          NavigationView{
             List{
               ForEach(self.tasklist, id:\.self){ task in
                   NavigationLink(destination: TaskDetView(task: task)){
                        TaskView(name: task.name, done: task.status, notify: task.notify).contextMenu{
                           Button(action: { //mark task as done in FirebaseDB }) {
                               Image(systemName: "checkmark.circle").foregroundColor(Color.green)
                               Text("Mark as complete")
                    }
                   }
               }
          }

And TaskView

struct TaskView: View {
var name: String
var done: Bool
var notify: Bool

var body: some View {
    ZStack{
        HStack{
            Text(name)
            Spacer()
            if notify{
                Image(systemName: "bell")
            }
            Text(done ? "Done" : "Not completed").font(.system(size: 10))
        }
    }
}

}

What I want to achieve is when the user clicks Mark as complete button in context menu to force the change of the text in TaskView in the TaskPageView list. I have tried to make another class like Tasks which was ObservableObject where a list of tasks was @Published, in MainPageView make the tasklist as @ObservedObject and use in ForEach .indices and pass the task as tasklist[idx] with still no success.

Thanks for your time!