User story:
As a community, I want to control whether newcomers receive revert notifications, because this decision should be left to communities.
Related:
- T273787: Enable edit revert notif by default on Wikipedia FR
- T91909: Revert notification could use a more constructive language
- T303566: Make it possible to customize EchoHooks::getNewUserPreferenceOverrides per wiki or remove it entirely
Acceptance Criteria:
Given I am an Admin,
When I want to change the default and ensure newcomers receive a revert notification,
Then that is Community Configurable