Related to: https://git.pleroma.social/pleroma/pleroma/merge_requests/1484
[ci skip]
## [Unreleased]
### Changed
- **Breaking:** Configuration: A setting to explicitly disable the mailer was added, defaulting to true, if you are using a mailer add `config :pleroma, Pleroma.Emails.Mailer, enabled: true` to your config
+- **Breaking:** Configuration: `/media/` is now removed when `base_url` is configured, append `/media/` to your `base_url` config to keep the old behaviour if desired
- Configuration: OpenGraph and TwitterCard providers enabled by default
- Configuration: Filter.AnonymizeFilename added ability to retain file extension with custom text
- Federation: Return 403 errors when trying to request pages from a user's follower/following collections if they have `hide_followers`/`hide_follows` set