Update FilePropertiesHelpers.cs

Author: yaira2

src/Files.App/Utils/Storage/Helpers/FilePropertiesHelpers.cs

@@ -111,6 +111,8 @@ public static void OpenPropertiesWindow(object item, IShellPage associatedInstan
 			var height = Convert.ToInt32(500 * App.AppModel.AppWindowDPI);
 
 			propertiesWindow.AppWindow.Resize(new (width, height));
+			propertiesWindow.IsMinimizable = false;
+			propertiesWindow.IsMaximizable = false;
 			propertiesWindow.Content = frame;
 			propertiesWindow.SystemBackdrop = new AppSystemBackdrop(true);