reassign pricing module row id

[Blesta Addons]

from blesta v4.0.0, and allowing package to not have a module row id, this behavior add service with module_row_id = 0 . this impact the plugin, the plugins can't determine the module from the module row id , as didn't exist any module row id with 0, so the list of the available package pricing  always empty .

$module_id = $this->getModuleId($service->module_row_id);