Allows more granularity on the activity reports by adding
a column to the tree view of crm activity reporting. Those
are the tags of the lead of the activity. Remove useless 'api'
import.
Also, make them available in the search bar and default show in
the tree view of activities. Improve the view with an avatar
widget on the author and default hide on the description.
Task-2991375
closesodoo/odoo#101245
Signed-off-by: David Beguin (dbe) <dbe@odoo.com>