Add `namespaces` to wide tables

What does this MR do?

Add namespaces to wide tables, now that it has reached the 50 column threshold.

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• [-] Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Closes #299376 (closed)