[chore:] renaming address sets now gives the current name as a base

MainWindow.axaml.cs

@@ -1070,23 +1070,27 @@ public partial class MainWindow : Window
 
     private async void MnIAdSetRename_OnClick(object? sender, RoutedEventArgs e)
     {
-        if (LstCustomerAdressSets.SelectedItems.Count > 0)
+        var id = (LstCustomerAdressSets.SelectedItems[0] as KasAddressList).ID;
-            try
-            {
-                var result = await NamingWindow.Show(this);
-                if (result != null)
-                {
-                    var id = KasAddressList.GetIDByAddressSetListItem(LstCustomerAdressSets.SelectedItems[0]
-                        .ToString());
         var cus_id = ((Customer)LstCustomers.SelectedItems[0]).ID;
+        var curr_set = new KasAddressList("");
         foreach (var set in Settings._instance.addressSets.addresses)
             if (set.ID == id)
             {
-                            set.Name = result;
+                curr_set = set;
+
+            }
+        
+        
+        if (LstCustomerAdressSets.SelectedItems.Count > 0)
+            try
+            {
+                var result = await NamingWindow.Show(this, curr_set.Name);
+                if (result != null)
+                {
+                    curr_set.Name = result;
                     Settings.Save();
                     RefreshAddressSetListItems(cus_id);
-                            break;
+                    return;
-                        }
                 }
             }
             catch (Exception ex)