feat(entitlement): gate 60 fps output through Steam

ViewModels/MainViewModel.Streaming.cs

@@ -66,6 +66,7 @@ public partial class MainViewModel : ViewModelBase
             {
                 _youtubeBroadcastLive = false;
                 OnPropertyChanged(nameof(IsOffline));
+                OnPropertyChanged(nameof(CanChangeQuality));
                 OnPropertyChanged(nameof(IsLive));
                 OnPropertyChanged(nameof(IsEditMode));
                 OnPropertyChanged(nameof(RecDotBrush));
@@ -91,6 +92,7 @@ public partial class MainViewModel : ViewModelBase
 
     public bool IsOffline => StreamStatus == StreamStatus.Offline;
     public bool IsLive => StreamStatus == StreamStatus.Streaming;
+    public bool CanChangeQuality => IsOffline && !IsRecording;
     public bool IsLivePrivate => IsLive && string.Equals(StreamVisibility, "Private", StringComparison.OrdinalIgnoreCase);
     public string RecDotBrush => !IsRecording
         ? ThemeBrush.Hex("Brush.OnSurfaceDisabled")
@@ -151,6 +153,7 @@ public partial class MainViewModel : ViewModelBase
         internal set
         {
             if (!SetProperty(ref _isRecording, value)) return;
+            OnPropertyChanged(nameof(CanChangeQuality));
             OnPropertyChanged(nameof(RecDotBrush));
             OnPropertyChanged(nameof(RecTextBrush));
             OnPropertyChanged(nameof(RecDotOpacity));
@@ -450,10 +453,15 @@ public partial class MainViewModel : ViewModelBase
         get => _selectedQuality;
         set
         {
+            if (!CanChangeQuality)
+            {
+                OnPropertyChanged(nameof(SelectedQuality));
+                return;
+            }
+
             if (!HasProOutput && value.RequiresPro)
             {
                 OnPropertyChanged(nameof(SelectedQuality));
-                OpenAboutCommand.Execute(null);
                 return;
             }