Steps to reproduce:
- install sales and contact
- install another language
- go to contacts, pick a specific contact and set its language to
the new language installed
- go to sales > settings > activate the "product configurator" option
- create a product with a translated variant (the variant has to have
at least 2 translated attributes with custom values)
- create a quotation with the modified contact and the product
with the variant (use the product configurator wizard) > save
- print that quotation

Previous behavior:
product description is not fully translated
the part describing the variants is in the current user's language
while the product display_name is using the associated partner's
language

Current behavior:
product description is fully translated into the correct language

opw-2168102

closes odoo/odoo#44144

X-original-commit: 4a542cbd
Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>