Create a simple subclass of AbstractAction (a client action), with property hasControlPanel set to true. By default, the name of the action should be displayed in the breadcrumb. Before this rev., it wasn't the case, as it displayed 'Unnamed' instead. Bug spotted when doing an exercice for the JS smartclass. closes odoo/odoo#37465 Signed-off-by: Géry Debongnie (ged) <ged@openerp.com>