Update LastPlayed date on emulation end. (#5056)

src/Ryujinx.Ava/UI/ViewModels/MainWindowViewModel.cs

@@ -1529,6 +1529,8 @@ namespace Ryujinx.Ava.UI.ViewModels
                     double sessionTimePlayed = DateTime.UtcNow.Subtract(appMetadata.LastPlayed.Value).TotalSeconds;
                     appMetadata.TimePlayed += Math.Round(sessionTimePlayed, MidpointRounding.AwayFromZero);
                 }
+
+                appMetadata.LastPlayed = DateTime.UtcNow;
             });
         }
 

src/Ryujinx/Ui/MainWindow.cs

@@ -1024,6 +1024,8 @@ namespace Ryujinx.Ui
                         double sessionTimePlayed = DateTime.UtcNow.Subtract(appMetadata.LastPlayed.Value).TotalSeconds;
                         appMetadata.TimePlayed += Math.Round(sessionTimePlayed, MidpointRounding.AwayFromZero);
                     }
+
+                    appMetadata.LastPlayed = DateTime.UtcNow;
                 });
             }
         }