App.xaml

<Application x:Class="WPF_StatusNotification.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:WPF_StatusNotification"
              xmlns:vm="clr-namespace:WPF_StatusNotification.ViewModel"
             StartupUri="MainWindow.xaml">
    <Application.Resources>
        <!--<ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary>
                    <vm:ViewModelLocator x:Key="Locator" />
                </ResourceDictionary>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>-->
    </Application.Resources>
</Application>