Add some more property ordering

Task-number: QDS-2071
Change-Id: Iadd9d8d8ec417614c3c6da130f1570c25443f0ae
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/qmldesigner/designercore/model/modeltotextmerger.cpp

@@ -378,6 +378,8 @@ PropertyNameList ModelToTextMerger::propertyOrder()
         PropertyName("anchors.bottom"),
         PropertyName("anchors.fill"),
         PropertyName("anchors.margins"),
+        PropertyName("font.letterSpacing"),
+        PropertyName("font.pixelSize"),
         PropertyName("horizontalAlignment"),
         PropertyName("verticalAlignment"),
         PropertyName("source"),