Update SfPopup.cs

Author: Anandh-SF4665

maui/src/Popup/SfPopup/SfPopup.cs

@@ -3157,10 +3157,10 @@ void SetParent()
 
 						// _popupOverlayContainer visibility is set to false after dismissing the popup.
 						// _popupOverlayContainer will be set as the parent to popupView here from DisplayPopup().
-						// Due to the framework changes [https://github.com/dotnet/maui/pull/20154],
+						// Due to Maui 9.0.50 changes [https://github.com/dotnet/maui/pull/20154],
 						// the IsVisible property of _popupView is set to false when reopening with the same instance of the popup, since _popupOverlayContainer visibility will now be false.
 						// _popupOverlayContainer visibility is set to true in a later section, but _popupView visibility will still remain false.
-						// causes popup to appear blank for second time
+						// causes popup to appear blank for second time.
 						_popupOverlayContainer.IsVisible = true;
 						_popupView.Parent = _popupOverlayContainer;
 					}