[FIX] website_sale: fallback on partner sales team if undefined on website

When a sale is done on the website, a corresponding sale order is created in the
backend. By default the salesperson and sales team associated to the sale are as
defined on the website.
When we prepare values, we fallback on the partner sales team in a way that is
coherent with the way it falls back on the partner for the salesperson.

opw 1882640

addons/website_sale/models/website.py

@@ -166,7 +166,7 @@ class Website(models.Model):
             'partner_id': partner.id,
             'pricelist_id': pricelist.id,
             'payment_term_id': self.sale_get_payment_term(partner),
-            'team_id': self.salesteam_id.id,
+            'team_id': self.salesteam_id.id or partner.parent_id.team_id.id or partner.team_id.id,
             'partner_invoice_id': addr['invoice'],
             'partner_shipping_id': addr['delivery'],
             'user_id': salesperson_id or self.salesperson_id.id or default_user_id,