Show author badge in comments

In addition to the badges showing the commenter's role (Contributor,
Guest, Reporter, etc.), add a new Author badge to the left of those when
the author of an issue, merge request, or epic comments.

Changelog: changed
MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/40198

app/models/note.rb

@@ -355,8 +355,6 @@ class Note < ApplicationRecord
   end
 
   def noteable_author?(noteable)
-    return false unless ::Feature.enabled?(:show_author_on_note, project)
-
     noteable.author == self.author
   end
 

config/feature_flags/development/show_author_on_note.yml

----
-name: show_author_on_note
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/40198
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/250282
-milestone: '13.4'
-type: development
-group: group::project management
-default_enabled: false