MacOS SwiftUI: Modify sample project to allow toolbar items

I've uploaded a simple Xcode SwiftUI project with a NavigationView. It has some ToolbarItems which needs to be changed programmatically. I've added 5 simple tasks inside the source code that needs to be fulfilled to complete the project: // 1. Add this menu item to the menu in the toolbar // 2. Remove this menu item from the toolbar // 3. If the removed item is the current selected one the next available item // needs to be selected // 4. Change the name of the menu item // 5. The title name of the menu needs to have the name of the selected item // The text 'This needs to be changed programmatically' needs to be changed for this With this done the Tests: // Test A remove menu item // Test B rename menu item // Test C add menu item // Test D remove new added menu item should run successfully.