[IMP] purchase_order_line_menu: Improved accessibility to order

Enhances usability by making it easier to access Purchase Order

Author: kanda999

purchase_order_line_menu/views/purchase_order_line_views.xml

@@ -14,6 +14,9 @@
                 <field name="state" optional="hide" />
                 <field name="invoice_status" optional="hide" />
             </xpath>
+            <xpath expr="//field[@name='order_id']" position="attributes">
+                <attribute name="widget">many2one</attribute>
+            </xpath>
             <xpath expr="//field[@name='product_id']" position="after">
                 <field name="product_type" optional="hide" />
             </xpath>