message: Move Binding to Stackpanel to avoid repeating code
diff: IsEnabled="{Binding ElementName=enablePomodoroCheckBox, Path=IsChecked}">Pomodoro Break Timer</CheckBox>
  <StackPanel Margin="5" Grid.Column="1" Grid.Row="2"
  Orientation="Horizontal">
  - <TextBox Name="pomodoroBreakTimerDuration" x:FieldModifier="private"
  - Width="30" HorizontalContentAlignment="Right" Text="5">
  - <TextBox.IsEnabled>
  + <StackPanel.IsEnabled>
  <MultiBinding Converter="{StaticResource AndConverter}">
  <Binding ElementName="enablePomodoroBreakCheckBox" Path="IsChecked"/>
  <Binding ElementName="enablePomodoroCheckBox" Path="IsChecked"/>
  </MultiBinding>
  - </TextBox.IsEnabled>
  + </StackPanel.IsEnabled>
  + <TextBox Name="pomodoroBreakTimerDuration" x:FieldModifier="private"
  + Width="30" HorizontalContentAlignment="Right" Text="5">
  </TextBox>
  <TextBlock Margin="4 0 0 0" Text="minutes">
  - <TextBlock.IsEnabled>
  - <MultiBinding Converter="{StaticResource AndConverter}">
  - <Binding ElementName="enablePomodoroBreakCheckBox" Path="IsChecked"/>
  - <Binding ElementName="enablePomodoroCheckBox" Path="IsChecked"/>
  - </MultiBinding>
  - </TextBlock.IsEnabled>
  </TextBlock>
  </StackPanel>
  