[FIX] lunch: fix batch mail order

Reproduce this issue:

    - Go in the lunch module
    - Create several orders for the same vendor
    - Go in "previous orders"
    - Select them and click on "actions > Lunch: Order meals"

    A traceback appears, no mail is sent and the status change to
    "ordered".

Cause:

    The `order` method in the lunch module returns an action but without
    enough information to send the mail correctly.

This commit add the missing information.

OPW-2118041

closes odoo/odoo#39959

Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/lunch/models/lunch.py

@@ -270,6 +270,9 @@ class LunchOrderLine(models.Model):
                 default_use_template=bool(template),
                 default_template_id=template.id,
                 default_lang=order['supplier'].lang or self.env.user.lang,
+                default_partner_ids=order['supplier'].ids,
+                default_res_id=self.ids[0],
+                default_model=self._name,
                 order=order,
                 lines=lines,
             )