[FIX] l10n_it_delivery_note: Update delivery note filter to include additional states

Author: NextEvTeo

l10n_it_delivery_note/views/stock_picking.xml

@@ -381,7 +381,7 @@
                 <filter
                     string="Validated DN"
                     name="validated_delivery_note"
-                    domain="[('delivery_note_state', '=', 'confirm')]"
+                    domain="[('delivery_note_state', 'in', ['confirm', 'invoiced', 'done'])]"
                 />
                 <field name="dn_supplier_number" />
             </xpath>