TreeBuilderAlertProfile - use class decorators for MiqAlert base_tables icons
TreeBuilderAlertProfile - use class decorators for MiqAlert base_tables icons

this fixes missing ContainerProject entry in the switch
by removing the switch, since all those entities have class decorators with the same fonticon
(except for middleware, which is gone)

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic