[terra-clinical-item-view] Fix for null item displays

[trandrew1023]

Summary

What was changed:

• Error is thrown when null displays prop is passed in, added check (didn't use ? here for readability)
• Error is also thrown when displays contains a null item display in the array and a check was added as well

Why it was changed:

• Consumers sometimes pass in null to displays prop and get an error with the latest changes

Testing

This change was tested using:

• WDIO
• Jest
• Visual testing (please attach a screenshot or recording)
• Other (please describe below)
• No tests are needed

Before:

After:

Reviews

In addition to engineering reviews, this PR needs:

• UX review
• Accessibility review
• Functional review

Additional Details

This PR resolves:

UXPLATFORM-9711

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@cerner/terra

[smason0]

Based on the referenced defect, it sounds like the issue seen by the consumer is around displays containing null values, rather than the displays itself being null (although we should also guard against this). The consuming app breaks when trying to reference the props from the displays array value.

[trandrew1023]

Based on the referenced defect, it sounds like the issue seen by the consumer is around displays containing null values, rather than the displays itself being null (although we should also guard against this). The consuming app breaks when trying to reference the props from the displays array value.

@smason0 omg really good catch, for some reason I assumed based on the description in the Jira but didn't realize the code snippet was pointing to that. I added the check in this commit c861937#diff-a09eb4a886b729c86a83daac740d9a14a92e66fe733a7a907899150b7fdae956

[smason0]

+1 with passing build