Fix `chat_names` before_action

app/controllers/profiles/chat_names_controller.rb

 class Profiles::ChatNamesController < Profiles::ApplicationController
-  before_action :chat_names
+  before_action :chat_names, only: [:index]
   before_action :chat_name_token, only: [:new]
   before_action :chat_name_params, only: [:new, :create, :deny]