Description of problem: In locale ja_JP, zh_CN, pt_BR, fr_FR, and es_ES, strings are not marked as translatable strings

Version-Release number of selected component (if applicable): Satellite 6.8, 6.9, 6.10

How reproducible: Always

Steps to Reproduce:
1. Login to Satellite instance with any locale.
2. Navigate to Hosts - SCAP Contents
3. Look for column heading on SCAP Contents page.

Actual results: Column heading strings are not marked as translated.

Expected results: Strings should be marked as translatable strings.

Additional info: Attached screenshot for the same.