Since #107916, the ActivityModel did not include
`["activity_ids", "!=", false]` in its domain, causing incoherence in
some views and resulting in crashes.
To reproduce the issue:
- In the runbot, navigate to Website -> eCommerce -> Product.
- Switch to the activity view.
- Remove the Published filter.
- The view crashes due to an incoherence between the data records
in the `web_search_read` and the `get_activity_data` calls.
This commit resolves the issue by correctly setting the domain.
closesodoo/odoo#108807
Signed-off-by: Luca Vitali <luvi@odoo.com>