Fix crash in Windows.UI.Xaml.FrameworkElement.ArrangeOverride

[pingzing]

Version: 0.1.17.0 | DigiTransit10

Stacktrace

Windows.UI.Xaml.FrameworkElement;ArrangeOverride;;
Windows.UI.Xaml.FrameworkElement;ArrangeOverride;;
Windows.ApplicationModel.Core.UnhandledError;Propagate;;
Microsoft.HockeyApp.Extensibility.Windows.UnhandledExceptionTelemetryModule;CoreApplication_UnhandledErrorDetected;;

Reason

Error HRESULT E_FAIL has been returned from a call to a COM component.

Link to HockeyApp

• https://rink.hockeyapp.net/manage/apps/369020/crash_reasons/166412518

[pingzing]

This one seems to happen occasionally when switching form the Wide -> Narrow view. Proooobably a framework bug I'll have to work around, but we'll see.