Started working on loading password list from viewModel

src/App/UI/MainWindow/MainWindow.cs

@@ -8,19 +8,22 @@ public class MainWindow
 {
     public Window Window { get; }
     private PreferencesGroup shortcutsGroup;
+    private PasswordList passwordCollection;
     private PasswordStoreShortcutCollection shortcuts;
     private Gtk.ToggleButton searchToggleButton;
     private Gtk.Stack titleStack;
     private Gtk.SearchEntry searchEntry;
+    private PreferencesGroup passwordList;
 
     private readonly IPasswordStoreService passwordStoreService;
 
-    private readonly string windowId = "main_window";
-    private readonly string shortcutsGroupId = "shortcuts_group";
-    private readonly string addShortcutButtonId = "add_shortcut_button";
-    private readonly string searchToggleButtonId = "search_button";
-    private readonly string titleStackId = "title_stack";
-    private readonly string searchEntryId = "search_entry";
+    private const string windowId = "main_window";
+    private const string shortcutsGroupId = "shortcuts_group";
+    private const string addShortcutButtonId = "add_shortcut_button";
+    private const string searchToggleButtonId = "search_button";
+    private const string titleStackId = "title_stack";
+    private const string searchEntryId = "search_entry";
+    private const string passwordListId = "password_list";
 
     public MainWindow(IPasswordStoreService passwordStoreService)
     {
@@ -38,7 +41,9 @@ public class MainWindow
         {
             shortcutsGroup = builder.GetObject(shortcutsGroupId) as PreferencesGroup;
             if (shortcutsGroup == null)
+            {
                 throw new Exception(shortcutsGroupId);
+            }
 
             var addButton = builder.GetObject(addShortcutButtonId) as Gtk.Button;
             if (addButton == null)
@@ -72,16 +77,26 @@ public class MainWindow
                 searchToggleButton.Active = false;
             };
             searchEntry.AddController(focusController);
+
+            passwordList = builder.GetObject(passwordListId) as PreferencesGroup;
+            if (passwordList == null)
+            {
+                throw new Exception(passwordListId);
+            }
         }
         catch (Exception e)
         {
             throw new Exception("Failed to load UI element with ID: " + e.Message);
         }
 
-    // Initialize the observable collection with property binding  
-    shortcuts = new PasswordStoreShortcutCollection(shortcutsGroup, passwordStoreService);
+        // Initialize the observable collection with property binding  
+        shortcuts = new PasswordStoreShortcutCollection(shortcutsGroup, passwordStoreService);
+        if (shortcuts.Count == 0)
+        {
+            LoadDefaultShortcuts();
+        }
 
-        LoadDefaultShortcuts();
+        passwordCollection = new PasswordList(passwordList);
     }
 
     private void OnAddShortcutClicked(object sender, EventArgs e)