Performance, Load Performance, and Browser Performance are unclear in documentation

Problem to solve

The current Job Artifacts documentation lists performance and load_performance as the report types for Browser Performance and Load Performance.

However we have all three types in code, and the merge request widget requesting browser_performance instead of performance, so by following the documentation, the browser performance widget will fail to load.

Proposal

From looking at the change history, it seems like browser_performance should be used in the documentation instead of performance.

Pages to be updated:

I'm not clear on the future intended use of performance; if it's deprecated in favor of context-specific performance reports, we should make a note in the documentation and JobArtifact::REPORT_TYPES to that effect.

Who can address the issue

I'm happy to send a merge request updating the documentation, but anyone else who's familiar with this part of the CI configuration should be able to as well.

Other links/references