PRS DESKTOP - fixed typo for Purchase Order Report

prs.desktop/MainWindow.xaml.cs

@@ -1807,7 +1807,7 @@ namespace PRSDesktop
             }
             else if (model.AsDictionary.ContainsKey(typeof(PurchaseOrder)))
             {
-                title = "Purchase Order";
+                title = "Purchase Order ";
                 CoreTable table = model.AsDictionary[typeof(PurchaseOrder)];
                 if (table.Rows.Count == 1)
                     title = title + table.Rows.FirstOrDefault().Get<PurchaseOrder, string>(x => x.PONumber);