Feat: changed field name to asociatel id in contract view
CHANGELOG:
### CHANGED
- [#1162](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/1162) Changed field name when asociatel is the supplier
Related card: https://trello.com/c/szQPZoRb/1807-modificaci%C3%B3-vista-contractes-asociatel-vdf