Remove usage ping payload from Cohorts, add to Settings
We'd like to show the Cohorts page (and other instance-level analytics) more prominently to make instance-level analytics more visible to users (including non-admins).
In order to make Cohorts more shareable, we should remove the usage ping JSON payload from the Cohorts page and make it viewable in Settings, adjacent to the "Enable usage ping" checkbox.
Cohorts should not display usage ping. A user should be able to view the JSON payload in Settings.