message: Display focused state within time entry cell instead of FocusVisualStyle (win)
  This fixes bug when FocusVisualStyle is sticking to the top of the container, detached from any cell
diff: d:DataContext="{d:DesignInstance Type=viewModels:TimeEntryCellViewModel}"
  d:DesignWidth="455"
  ContextMenu="{StaticResource TimeEntryContextMenu}"
  - FocusVisualStyle="{DynamicResource Toggl.ButtonFocusVisualStyle}"
  + FocusVisualStyle="{x:Null}"
  Focusable="True"
  IsTabStop="True"
  behaviors:FocusHelper.IsFocused="{Binding IsFocused, Mode=OneWay}"
  Source="/TogglDesktop;component/Resources/locked-icon.png"
  Stretch="UniformToFill"/>
  </StackPanel>
  +
  + <Border Grid.Column="0" Grid.ColumnSpan="4"
  + IsHitTestVisible="False"
  + BorderThickness="1"
  + BorderBrush="{DynamicResource Toggl.Button.Accent.PressedBackground}"
  + Visibility="{Binding RelativeSource={RelativeSource AncestorType=toggl:TimeEntryCell}, Path=IsKeyboardFocused, Converter={StaticResource BooleanToVisibilityConverterGlobal}}">
  + <Rectangle SnapsToDevicePixels="True"
  + StrokeThickness="1"
  + UseLayoutRounding="True">
  + <Rectangle.Stroke>
  + <SolidColorBrush Color="{DynamicResource Toggl.SelectionElements.BackgroundColor}" Opacity="0.6" />
  + </Rectangle.Stroke>
  + </Rectangle>
  + </Border>
  </Grid>
  </UserControl>
  