tools: make comma-dangle ESLint rule more stringent
We've been having a lot of nits lately asking people to add trailing commas, so it's probably time to incrementally make the comma-dangle rule more stringent.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
We've been having a lot of nits lately asking people to add trailing commas, so it's probably time to incrementally make the comma-dangle rule more stringent.