Add expand on tree view

and unify layout of form view.

issue8644
review262131002

view/classification_list.xml

@@ -2,6 +2,6 @@
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
 <tree>
-    <field name="rec_name"/>
+    <field name="rec_name" expand="1"/>
     <field name="selectable" tree_invisible="1"/>
 </tree>

view/classification_tree_tree.xml

@@ -3,6 +3,6 @@
 this repository contains the full copyright notices and license terms. -->
 <data>
     <xpath expr="/tree/field[@name='rec_name']" position="replace">
-        <field name="name"/>
+        <field name="name" expand="1"/>
     </xpath>
 </data>