message: Make the entire timer panel clickable (win)
diff: </Grid>
  <Grid Name="timerPanel" x:FieldModifier="private" Visibility="Visible"
  Margin="0 16 0 14"
  - MouseLeftButtonDown="onGridMouseDown" IsHitTestVisible="True" KeyDown="onGridKeyDown">
  + MouseLeftButtonDown="onGridMouseDown"
  + KeyDown="onGridKeyDown"
  + Background="Transparent">
  <Grid.ColumnDefinitions>
  <ColumnDefinition />
  <ColumnDefinition Width="Auto"/>
  