Changes proposed in this Pull Request
Includes the number of comments on the Insights page. In theory, this number can still be found under the “Comments” section, but it feels like it’d make sense to include it here in order to bring parity to the WP-Admin section, since that’s not going to be available anymore.
Testing instructions
Visit /stats/insights
and confirm that the number of Comments is now shown.
cc @sixhours
Related to #51095
Unfortunately, no screenshots were provided by the developer.