message: Fix country selection combobox jump (win)
diff: ItemsSource="{Binding}"
  SelectedValuePath="Name"
  VerticalAlignment="Center">
  - <ComboBox.ItemsPanel>
  - <ItemsPanelTemplate>
  - <VirtualizingStackPanel />
  - </ItemsPanelTemplate>
  - </ComboBox.ItemsPanel>
  <ComboBox.ItemTemplate>
  <DataTemplate>
  <TextBlock Foreground="#000000" Text="{Binding Name}" />
  