Nextcloud Login refactoring

Nextcloud Cookbook iOS Client/Nextcloud_Cookbook_iOS_ClientApp.swift

@@ -21,7 +21,7 @@ struct Nextcloud_Cookbook_iOS_ClientApp: App {
                     EmptyView()
                 } else {
                     MainView()
-                        .modelContainer(for: Recipe.self)
+                        .modelContainer(for: [Recipe.self, GroceryItem.self, RecipeGroceries.self])
                 }
             }
             .transition(.slide)
@@ -30,6 +30,10 @@ struct Nextcloud_Cookbook_iOS_ClientApp: App {
                 .init(identifier: language ==
                       SupportedLanguage.DEVICE.rawValue ? (Locale.current.language.languageCode?.identifier ?? "en") : language)
             )
+            .onAppear {
+                AuthManager.shared.loadAuthString() // Load the auth string as soon as possible
+            }
         }
+        
     }
 }