message: Fix TextBox style (win)
diff: <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  - xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  - <Style TargetType="TextBox" x:Key="Toggl.TextBox">
  + xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  + xmlns:mah="http://metro.mahapps.com/winfx/xaml/controls">
  + <ResourceDictionary.MergedDictionaries>
  + <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.TextBox.xaml" />
  + </ResourceDictionary.MergedDictionaries>
  +
  + <Style TargetType="TextBox" x:Key="Toggl.TextBox" BasedOn="{StaticResource MetroTextBox}">
  <Setter Property="FontFamily" Value="{DynamicResource BaseFont}" />
  - <Setter Property="FontSize" Value="14" />
  + <Setter Property="FontSize" Value="{DynamicResource NormalFontSize}" />
  <Setter Property="Foreground" Value="{DynamicResource Toggl.PrimaryTextBrush}" />
  - <Setter Property="Background" Value="{DynamicResource Toggl.CardBackground}" />
  + <Setter Property="Background" Value="{DynamicResource Toggl.SelectionElements.Background}" />
  <Setter Property="BorderBrush" Value="{DynamicResource Toggl.TextBox.Border}" />
  - <Style.Triggers>
  - <Trigger Property="IsMouseOver" Value="True">
  - <Setter Property="BorderBrush" Value="{DynamicResource Toggl.TextBox.MouseOverBorder}" />
  - </Trigger>
  - <Trigger Property="IsKeyboardFocusWithin" Value="True">
  - <Setter Property="BorderBrush" Value="{DynamicResource Toggl.AccentBrush}" />
  - </Trigger>
  - <Trigger Property="IsKeyboardFocused" Value="True">
  - <Setter Property="BorderBrush" Value="{DynamicResource Toggl.AccentBrush}" />
  - </Trigger>
  - </Style.Triggers>
  + <Setter Property="CaretBrush" Value="{DynamicResource Toggl.PrimaryTextBrush}" />
  + <Setter Property="mah:ControlsHelper.FocusBorderBrush" Value="{DynamicResource Toggl.AccentBrush}" />
  + <Setter Property="mah:ControlsHelper.MouseOverBorderBrush" Value="{DynamicResource Toggl.TextBox.MouseOverBorder}" />
  + <Setter Property="Padding" Value="6 4" />
  </Style>
  </ResourceDictionary>
  \ No newline at end of file
  