[FIX] purchase: show quantity by default

Scale up game has been printed with the quantity show by default on the
supplier info. So we copy that behavior in standard for educational
purpose and avoid to print again all the scale up.

Also it's better from a usablity point of view since it's an important
information.

opw-fp

closes odoo/odoo#81774

X-original-commit: 4a47727c68a9f5c66ad9d7656f499b4e760f315c
Signed-off-by: William Henrotin (whe) <whe@odoo.com>
Signed-off-by: Arnold Moyaux <arm@odoo.com>

addons/purchase/views/product_views.xml

@@ -17,7 +17,7 @@
                     <attribute name="optional">hide</attribute>
                 </xpath>
                 <xpath expr="//field[@name='min_qty']" position="attributes">
-                    <attribute name="optional">hide</attribute>
+                    <attribute name="optional">show</attribute>
                 </xpath>
                 <xpath expr="//field[@name='partner_id']" position="attributes">
                     <attribute name="readonly">0</attribute>