fix design artifact label to be product discovery. Was done here…

What does this MR do?

Updates the Design Artifact Label to be Product Discovery

What are the relevant issue numbers?

n/a

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• Tests added for this feature/bug
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the database guides