system_event: fix form group of validation state fields

https://www.erp5.com/bt5-Module.Creation.Guidelines

> Rule: In view mode, simulation_state or validation_state fields should be in the bottom of “right” group

bt5/erp5_system_event/SkinTemplateItem/portal_skins/erp5_system_event/AuthenticationEvent_view.xml

@@ -96,14 +96,15 @@
                         <string>my_title</string>
                         <string>my_source_title</string>
                         <string>my_destination_title</string>
-                        <string>my_translated_validation_state_title</string>
                       </list>
                     </value>
                 </item>
                 <item>
                     <key> <string>right</string> </key>
                     <value>
-                      <list/>
+                      <list>
+                        <string>my_translated_validation_state_title</string>
+                      </list>
                     </value>
                 </item>
               </dictionary>

bt5/erp5_system_event/SkinTemplateItem/portal_skins/erp5_system_event/PasswordEvent_view.xml

@@ -96,14 +96,15 @@
                         <string>my_title</string>
                         <string>my_source_title</string>
                         <string>my_destination_title</string>
-                        <string>my_translated_validation_state_title</string>
                       </list>
                     </value>
                 </item>
                 <item>
                     <key> <string>right</string> </key>
                     <value>
-                      <list/>
+                      <list>
+                        <string>my_translated_validation_state_title</string>
+                      </list>
                     </value>
                 </item>
               </dictionary>