[FIX] base: avoid faulty image url for 1000+ users
[FIX] base: avoid faulty image url for 1000+ users

Starting with the 1000th user, the kanban view returns the id value
as '1,001', which, for some reason, does not go well when trying to
find the attachment by url...

Use `raw_value` instead, which does not format the id value.
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo