From the department kanban view,
when clicking on the "Employees" button of a department,
it shows all employee regardless of their department.
This is a consequence of the back2basics commit 9a0fedf
which removed the department filter and added a
search panel instead.
This commit changes the search default filter
to a default filter for the searchpanel.
closes odoo/odoo#36635
Signed-off-by: VincentSchippefilt <VincentSchippefilt@users.noreply.github.com>