Pretty View prevent Null Values from being displayed

[mikufan76]

Overview

The user has to click to see a null value, this is a bit unintuitive. The accordion should be prevented from expanding and instead should have "[Fieldname]: 'N/A'" in the accordion header
EX: Hashes: 'N/A'

Acceptance Criteria

• Null values are shown as 'N/A' on the accordion header