Add confirmation on all buttons that can not be undone

issue5258
review271141002

stock.xml

@@ -174,6 +174,7 @@ this repository contains the full copyright notices and license terms. -->
         <record model="ir.model.button" id="shipment_drop_done_button">
             <field name="name">done</field>
             <field name="string">Done</field>
+            <field name="confirm">Are you sure you want to complete the shipment?</field>
             <field name="model"
                 search="[('model', '=', 'stock.shipment.drop')]"/>
         </record>