fix manual application of connectorhub.yaml

[jack-clarke-luthersystems]

currently connectorhub yaml is applied manually (outside MARS). it seems MARS/helm doesn't pick up on changes. this issue is for modification of MARS/ui-infrastructure to get things working using helm.

Also, we should make sure we're setting POD_NAMESPACE:

env:

• name: POD_NAMESPACE
  valueFrom:
  fieldRef:
  fieldPath: metadata.namespace

since it is used by connectorhub in pod management