Update changelog

CHANGELOG.md

@@ -17,6 +17,7 @@
 - Updated compose view, add deprecation notice for v3 ([57e155b9](https://github.com/pixelfed/pixelfed/commit/57e155b9))
 - Updated StoryController, orientate story media and strip exif ([07a13fcf](https://github.com/pixelfed/pixelfed/commit/07a13fcf))
 - Updated admin reports, fixed 404 bug ([dbd5c4cf](https://github.com/pixelfed/pixelfed/commit/dbd5c4cf))
+- Updated AdminController, abstracted dashboard stats to AdminStatsService ([41abe9d2](https://github.com/pixelfed/pixelfed/commit/41abe9d2))
 
 ### Changed