Error when clicking the Add Trigger command but triggers are not installed on cluster

[lstocchi]

A user, who doesn't have tekton triggers installed in the cluster, is still able to see the Add Trigger action. If clicked an error is shown

The error occurs in const listTriggerBinding = JSON.parse(triggerBinding.stdout).items; (webviewstartpipeline.ts) because the triggerBinding stdout is empty.

To replicate it just delete all triggers from your cluster
`oc delete -f https://storage.googleapis.com/tekton-releases/triggers/latest/release.yaml"

and click the Add Trigger command.