Added items to what's new dialog on the settings page

SettingsPageViewModel.cs:
 - chg: Added new changes to the "What's new" dialog.

VideoPlayerPageViewModel.cs:
 - rm: Removed leftover unused field.

Author: TimGels

OneDrive-Cloud-Player/ViewModels/SettingsPageViewModel.cs

@@ -71,12 +71,15 @@ private async void DisplayWhatsNewDialog()
         {
             ContentDialog whatsNewDialog = new ContentDialog
             {
-                Title = $"Whats new in {PackageDisplayName}",
+                Title = $"What's new in {PackageDisplayName}",
                 PrimaryButtonText = "Ok",
                 DefaultButton = ContentDialogButton.Primary,
                 Background = new SolidColorBrush(Color.FromArgb(255, 30, 41, 49)),
             };
-            whatsNewDialog.Content += "* Added a settings page";
+            whatsNewDialog.Content += "* Added a settings page\n";
+            whatsNewDialog.Content += "* You can now go directly to the next or previous video from within the \n   videoplayer\n";
+            whatsNewDialog.Content += "* Added more hotkeys to the videoplayer\n";
+            whatsNewDialog.Content += "* The application is now licensed under GPLv2 only";
 
             await whatsNewDialog.ShowAsync();
         }

OneDrive-Cloud-Player/ViewModels/VideoPlayerPageViewModel.cs

@@ -24,7 +24,6 @@ namespace OneDrive_Cloud_Player.ViewModels
     public class VideoPlayerPageViewModel : ViewModelBase, INotifyPropertyChanged, IDisposable, INavigable
     {
         private readonly INavigationService _navigationService;
-        private readonly GraphHelper graphHelper = GraphHelper.Instance();
         /// <summary>
         /// Fires every time the OneDrive download URL has expired (two minutes).
         /// </summary>