Increased count of notes loaded when visit wall page

app/controllers/notes_controller.rb

@@ -16,7 +16,7 @@ class NotesController < ApplicationController
              when "snippet"
                then  project.snippets.find(params[:target_id]).notes
              when "wall"
-               then project.common_notes.order("created_at DESC").fresh.limit(20)
+               then project.common_notes.order("created_at DESC").fresh.limit(60)
              when "issue"
                then project.issues.find(params[:target_id]).notes.inc_author.order("created_at DESC").limit(20)
              when "merge_request"