Review OrganizationIncident endpoints to publish or make private

API endpoints to review:

- [ ] `OrganizationIncidentActivityIndexEndpoint::GET`
- [ ] `OrganizationIncidentCommentDetailsEndpoint::DELETE`
- [ ] `OrganizationIncidentCommentDetailsEndpoint::PUT`
- [ ] `OrganizationIncidentCommentIndexEndpoint::POST`
- [ ] `OrganizationIncidentDetailsEndpoint::GET`
- [ ] `OrganizationIncidentDetailsEndpoint::PUT`
- [ ] `OrganizationIncidentIndexEndpoint::GET`
- [ ] `OrganizationIncidentSeenEndpoint::POST`

Documentation on determining if API should or shouldn't be public and how to publish: https://develop.sentry.dev/api/public/

If an endpoint is determined as a candidate to be published, create an issue and link it in this [placeholder epic](https://github.com/getsentry/sentry/issues/61479)

Note: scope of **this ticket** is only to either create ticket for publishing, or marking private/experimental.

If endpoint is determined to be kept private or experimental, it should be marked as such with ApiPublishStatus. Example:

https://github.com/getsentry/sentry/blob/dc65f986f481a27b3a13db224b4a096f009e1a48/src/sentry/api/endpoints/user_notification_email.py#L19-L24

This a minimal change, so no point in creating a separate ticket.