Repaint the phone's chrome, radii and accent to the v5 vocabulary

src/DodoSSH.Client.Android/Views/HostsScreen.axaml

@@ -68,7 +68,7 @@
       of a selection and ticking it is a thing this screen supports rather than merely survives.
     -->
     <Border Grid.Row="0" Margin="14,10,14,4" Background="{StaticResource Field}"
-            BorderBrush="{StaticResource BorderMid}" BorderThickness="1" CornerRadius="11" Height="44">
+            BorderBrush="{StaticResource BorderMid}" BorderThickness="1" CornerRadius="10" Height="44">
       <Grid ColumnDefinitions="Auto,*">
         <TextBlock Grid.Column="0" Text="⌕" Foreground="{StaticResource TextFaint}" FontSize="13"
                    Margin="13,0,0,0" VerticalAlignment="Center" />
@@ -974,7 +974,10 @@
     <Grid IsVisible="{Binding IsEditing}" RowDefinitions="Auto,*"
           Background="{StaticResource Canvas}">
 
-      <Border Grid.Row="0" Background="{StaticResource Chrome}" BorderBrush="{StaticResource Border}"
+      <!-- DeepChrome rather than Chrome, since v5: "its header carries what the surrounding chrome no longer
+           can" below is still true, and now the header itself carries the darker chrome the rest of this
+           head's frame does — see the remark on PhoneShell's vault header. -->
+      <Border Grid.Row="0" Background="{StaticResource DeepChrome}" BorderBrush="{StaticResource Border}"
               BorderThickness="0,0,0,1" Padding="6,0" Height="56">
         <Grid ColumnDefinitions="Auto,*,Auto">
           <Button Grid.Column="0" Classes="icon" Content="←" Command="{Binding CancelEditCommand}"