Mail Activity Type diversification
CHANGELOG:
### CHANGED
- [#970](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/970) Mail Activity Type diversification
Related card: https://trello.com/c/XlVHf0aE/1487-important-%C3%BAs-diari-diversificaci%C3%B3-tipus-dactivitat
Edited by César López Ramírez