Fix syntax error in product search
CHANGELOG:
### Fixed
- [#502](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/502) Fix syntax error in product search
Fix error:
This domain is syntactically not correct: ['&', '|', ('showed_name', 'ilike', 'xxxx'), ('default_code', 'ilike', 'xxxx')]
Edited by Pelayo García