Upload JAR file does not work if the Cluster Samples Operator is disabled

This is a clone of issue OCPBUGS-15011. The following is the description of the original issue:
—
Description of problem:
This is a clone of the doc issue OCPBUGS-9162.

Import JAR files doesn't work if the Cluster Samples Operator is not installed. This is a common issue in disconnected clusters where the Cluster Samples Operator is disabled by default. Users should not see the JAR import option if its not working correctly.

Version-Release number of selected component (if applicable):
4.9+

How reproducible:
Always, when the samples operator is not installed

Steps to Reproduce:

1. Setup a cluster without samples operator or uninstall all "Java" Builder Images (ImageStreams from the openshift namespace)
2. Switch to the Developer perspective
3. Navigate to Add > Import JAR file
4. Upload a JAR file and press Create

Actual results:
Import doesn't work

Expected results:
The Import JAR file option should not be disabled if no "Java" Builder Image (ImageStream in the openshift namespace) is available

Additional info:

1. https://docs.openshift.com/container-platform/4.9/applications/creating_applications/odc-creating-applications-using-developer-perspective.html#odc-deploying-java-applications_odc-creating-applications-using-developer-perspective
2. https://docs.openshift.com/container-platform/4.11/post_installation_configuration/cluster-capabilities.html
3. https://docs.openshift.com/container-platform/4.9/openshift_images/configuring-samples-operator.html
4. https://github.com/jerolimov/openshift/blob/master/notes/cluster.md