- Increase size of the reviewable's conversation excerpt to prevent truncation of the new copy
- Remove the `domain` parameter from the `flag_linked_posts_as_spam` method in the user model since it is no longer needed
- Remove the `domain` interpolation variable from all translation files
- Add "All posts from this user that include links should be reviewed." to server.en.yml for added clarity on why the posts entered the queue
* REFACTOR: Rename SiteSetting.disable_edit_notifications to disable_system_edit_notifications
- The older name could cause some confusion because the setting does not disable all edit notifications, only system ones.
* FIX: Add frozen_string_literal: true in the migration
* DEV: Deprecate 'disable_edit_notifications'
