Adapt Change holder wizard to packs flow
CHANGELOG:
### Changed
- [#944](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/944) Adapt Change holder wizard to packs flow
Related card: https://trello.com/c/5lCNZTkj/1478-modificacions-al-wizard-canvi-de-titular
- Show in the wizard if mobile pack offer is available.
- Selector with the product to choose.
Edited by Daniel Palomar