message: Fix the selected color scheme list item container background being blue in Windows 10
  Specify the resource to use for the list view item background when selected.
  References
  ## Validation Steps Performed
  Background is no longer blue, it is light gray (like in Windows 11). Screenshots below.
diff: PreviewKeyDown="ListView_PreviewKeyDown"
  SelectedItem="{x:Bind ViewModel.CurrentScheme, Mode=TwoWay}"
  SelectionMode="Single">
  + <ListView.Resources>
  + <!-- We need this here because otherwise the background is blue in Windows 10 -->
  + <SolidColorBrush x:Key="ListViewItemBackgroundSelected"
  + Color="{ThemeResource SystemListLowColor}" />
  + </ListView.Resources>
  <ListView.ItemTemplate>
  <DataTemplate x:DataType="local:ColorSchemeViewModel">
  <Grid MaxWidth="1000"
  