Désiré Werner Menrath
a2c9932d90
Dieser Commit führt einen neuen Detailbildschirm zur Verwaltung von Artikeln innerhalb einer Einkaufsliste ein. Die wichtigsten Änderungen umfassen: - Added `ShoppingListDetailScreen` to display items of a selected shopping list. - Implemented navigation from `ShoppingListsScreen` to `ShoppingListDetailScreen` upon clicking a list card. - Updated `MainActivity.kt` to handle navigation state and display a back button for the detail view. - Enhanced `ShoppingListsViewModel.kt` to provide a stream for a single shopping list with its items. - Added new string resources for the detail screen. - Users can now view and toggle the checked status of individual items within a dedicated screen.