Fix missized grid rows

QSharpXamDemo/QSharpXamDemo/CueListPage.xaml.cs

@@ -5,6 +5,7 @@ using System.Threading.Tasks;
 using QSharp;
 using QSharpXamDemo.ViewModels;
 using Serilog;
+using Xamarin.Essentials;
 using Xamarin.Forms;
 
 namespace QSharpXamDemo
@@ -49,11 +50,11 @@ namespace QSharpXamDemo
                         {
                             Grid cueGrid = cueToGrid(aCue);
                             cueGridDict.Add(aCue.uid, cueGrid);
-                            Device.BeginInvokeOnMainThread(() =>
+                            MainThread.InvokeOnMainThreadAsync(() =>
                             {
                                 cueListsGrid.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
                                 cueListsGrid.Children.Add(cueGrid, 0, aCue.sortIndex);
-                            });
+                            }).Wait();
                         });
 
                         cueAddTask.Start();
@@ -117,14 +118,15 @@ namespace QSharpXamDemo
                     rows++;
                 }
 
-                    var cueFrame = new Frame
+                //this doesn't work to outline group?
+                /*var cueFrame = new Frame
                 {
                     BackgroundColor = Color.Transparent,
                     BorderColor = Color.Black
                 };
 
                 cueGrid.Children.Add(cueFrame);
-                    Grid.SetRowSpan(cueFrame, rows);
+                Grid.SetRowSpan(cueFrame, rows);*/
 
             }
             return cueGrid;