Currently, activity view does not support many2one_avatar_user widget due to which clicking on image do not open chat window, with this commit, we add support of many2one_avatar_user widget in activity_view so that user can click on avatar image and open chat window. task-2554466 closes odoo/odoo#71804 Related: odoo/enterprise#18803 Signed-off-by: Simon Genin (ges@odoo) <ges@odoo.com>