Deactivate Add button when name field is cleared
Deactivate Add button when name field is cleared

https://bugzilla.redhat.com/show_bug.cgi?id=1486681

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