comments: put sticky option in popup menu instead of in edit form.

Put the option to sticky a comment in the "..." popup menu instead of
in the comment edit form. This makes it more consistent with deleting or
undeleting a comment.

Also fix a bug where the comment undelete icon didn't show up due to a
typo.

app/helpers/components_helper.rb

@@ -7,8 +7,8 @@ module ComponentsHelper
     render PostPreviewComponent.with_collection(posts, **options)
   end
 
-  def render_comment(comment, **options)
-    render CommentComponent.new(comment: comment, **options)
+  def render_comment(comment, current_user:, **options)
+    render CommentComponent.new(comment: comment, current_user: current_user, **options)
   end
 
   def render_comment_section(post, **options)