Change the order of inheritance to preserve user.agent property (#10470)

client/src/main/resources/com/vaadin/DefaultWidgetSet.gwt.xml

@@ -8,10 +8,10 @@
     <!-- Hint for WidgetSetBuilder not to automatically update the file -->
     <!-- WS Compiler: manually edited -->
 
-    <inherits name="com.vaadin.Vaadin" />
-
     <inherits name="elemental.Elemental" />
 
+    <inherits name="com.vaadin.Vaadin" />
+
     <inherits name="com.google.gwt.precompress.Precompress" />
 
     <entry-point class="com.vaadin.client.ApplicationConfiguration" />