Fixed menu item add when item added to the ObservableCollection

[crippledfaith]

Pull request type

Please check the type of change your PR introduces:

• Update
• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes

What is the current behavior?

When MenuItemsSource or FooterMenuItemsSource in MVVM binding to ObservableCollection the Item added to the collection dose not update in the UI.

Issue Number: N/A

What is the new behavior?

        [ObservableProperty]
        private ObservableCollection<object> _broserNavigationViewItem = new ObservableCollection<object>();

         BroserNavigationViewItem.Add(new NavigationViewItem()
         {
             Content = content,
             Icon = new SymbolIcon { Symbol = icon },
             TargetPageType = targetPageType,
             TargetPageTag = name,
             Template = NavigationService.GetNavigationControl().ItemTemplate
         });

NavigationView item will add the Item

Other information

[pomianowski]

ItemSource of other WPF controlls does not directly bound to ObservableCollection
https://learn.microsoft.com/pl-pl/dotnet/api/system.windows.controls.itemscontrol.itemssource?view=windowsdesktop-8.0#system-windows-controls-itemscontrol-itemssource

[crippledfaith]

I seems they are suggesting to use ObservableCollection. According to the documentation.

[pomianowski]

This is a recommendation to the end user, which does not mean that the library should enforce this type of collection