create a note taking app using swiftui and store notes using userdefaults in swift, cancel notes with drag gesture and allow to open the note to edit it in swift

main.swift
// Note struct to store the properties of the note
struct Note: Codable, Identifiable {
    let id = UUID()
    var title: String
    var content: String
}

// Note Manager class to handle the saving and retrieval of the notes from UserDefaults
class NoteManager {
    static let shared = NoteManager()
    
    let key = "notes"
    var notes: [Note] {
        get {
            guard let data = UserDefaults.standard.data(forKey: key) else { return [] }
            
            if let decoded = try? JSONDecoder().decode([Note].self, from: data) {
                return decoded
            }
            
            return []
        }
        set {
            if let encoded = try? JSONEncoder().encode(newValue) {
                UserDefaults.standard.set(encoded, forKey: key)
            }
        }
    }
    
    // Method to add a new note to the list
    func add(note: Note) {
        var existingNotes = notes
        existingNotes.append(note)
        notes = existingNotes
    }
    
    // Method to remove a note from the list
    func remove(note: Note) {
        var existingNotes = notes
        existingNotes.removeAll { $0.id == note.id }
        notes = existingNotes
    }
}

// View that shows the list of notes
struct NoteListView: View {
    @State private var notes = NoteManager.shared.notes
    
    var body: some View {
        NavigationView {
            List {
                ForEach(notes) { note in
                    NavigationLink(
                        destination: NoteDetailView(note: note),
                        label: { Text(note.title) }
                    )
                }
                .onDelete(perform: deleteNotes)
            }
            .navigationBarTitle("Notes")
            .navigationBarItems(trailing: Button(action: addNote) {
                Image(systemName: "plus")
            })
        }
    }
    
    // Method to delete notes with the swipe gesture
    func deleteNotes(at offsets: IndexSet) {
        offsets.forEach { index in
            let note = notes[index]
            NoteManager.shared.remove(note: note)
        }
        notes = NoteManager.shared.notes
    }
    
    // Method to add a new note to the list
    func addNote() {
        let note = Note(title: "New Note", content: "")
        NoteManager.shared.add(note: note)
        notes = NoteManager.shared.notes
    }
}

// View that shows the details of the note and allows editing
struct NoteDetailView: View {
    @State private var note: Note
    
    var body: some View {
        Form {
            Section(header: Text("Title")) {
                TextField("", text: $note.title)
            }
            
            Section(header: Text("Content")) {
                TextEditor(text: $note.content)
            }
        }
        .navigationBarTitle(note.id.uuidString)
        .onDisappear(perform: updateNote)
    }
    
    // Method to update the note when changes are made
    func updateNote() {
        NoteManager.shared.remove(note: note)
        NoteManager.shared.add(note: note)
    }
}
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