Add expand on tree view

and unify layout of form view.

issue8644
review262131002

view/user_list.xml

@@ -2,8 +2,8 @@
 <!-- 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="party"/>
-    <field name="email"/>
+    <field name="party" expand="2"/>
+    <field name="email" expand="1"/>
     <field name="email_valid"/>
     <button name="validate_email" string="Validate E-mail"/>
     <button name="reset_password" string="Reset Password"/>