message: Fix ScrollViewer style (win)
diff: </Style>
  <Style TargetType="ScrollViewer" x:Key="Toggl.CustomScrollViewer">
  - <Setter Property="HorizontalContentAlignment" Value="Left" />
  - <Setter Property="VerticalContentAlignment" Value="Top" />
  - <Setter Property="VerticalScrollBarVisibility" Value="Visible" />
  <Setter Property="Template">
  <Setter.Value>
  <ControlTemplate TargetType="ScrollViewer">
  <ColumnDefinition Width="Auto"/>
  </Grid.ColumnDefinitions>
  - <ScrollContentPresenter x:Name="ScrollContentPresenter"
  + <ScrollContentPresenter x:Name="PART_ScrollContentPresenter"
  Cursor="{TemplateBinding Cursor}"
  Margin="{TemplateBinding Padding}"
  + CanContentScroll="{TemplateBinding CanContentScroll}"
  + CanHorizontallyScroll="False"
  + CanVerticallyScroll="False"
  + Content="{TemplateBinding Content}"
  ContentTemplate="{TemplateBinding ContentTemplate}"/>
  <ScrollBar x:Name="PART_VerticalScrollBar"
  IsTabStop="False"
  - Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"
  Grid.Column="1" Orientation="Vertical"
  - ViewportSize="{TemplateBinding ViewportHeight}"
  + Cursor="Arrow"
  Maximum="{TemplateBinding ScrollableHeight}"
  Minimum="0"
  - Value="{TemplateBinding VerticalOffset}"
  + ViewportSize="{TemplateBinding ViewportHeight}"
  + Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"
  + Value="{Binding VerticalOffset, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}"
  Style="{StaticResource Toggl.CustomScrollBar}"/>
  </Grid>
  