Add french translation.

Resources/translations/SonataUserBundle.fr.xliff

@@ -174,6 +174,10 @@
                 <source>Management</source>
                 <target>Gestion</target>
             </trans-unit>
+            <trans-unit id="field.label_roles_editable">
+                <source>field.label_roles_editable</source>
+                <target>Rôles</target>
+            </trans-unit>
             <trans-unit id="form_profile">
                 <source>Profile</source>
                 <target>Profil</target>