Correct the visibility of a few routes

app/controllers/application_controller.rb

@@ -8,6 +8,7 @@ class ApplicationController < ActionController::Base
   before_action :set_locale, :redirect_to_maintenance
   protect_from_forgery
 
+  private 
   def redirect_to_maintenance
     if Houdini.maintenance&.active && !current_user
       unless self.class == Users::SessionsController &&

app/controllers/concerns/controllers/locale.rb

@@ -8,6 +8,7 @@ module Controllers::Locale
     included do 
         before_action :set_locale
 
+        private 
         def set_locale
             if params[:locale] && Houdini.intl.available_locales.include?(params[:locale])
               I18n.locale = params[:locale]

app/controllers/concerns/controllers/nonprofit/current.rb

@@ -5,6 +5,7 @@
 module Controllers::Nonprofit::Current
     extend ActiveSupport::Concern
     included do
+        private
         def current_nonprofit
             @nonprofit = current_nonprofit_without_exception
             raise ActionController::RoutingError, 'Nonprofit not found' if @nonprofit.nil?

app/controllers/concerns/controllers/supporter/current.rb

@@ -6,6 +6,7 @@ module Controllers::Supporter::Current
     include Controllers::Nonprofit::Current
     extend ActiveSupport::Concern
     included do
+        private
         def current_supporter
             current_nonprofit.supporters.find(params[:supporter_id] || params[:id])
         end

app/controllers/nonprofits/cards_controller.rb

@@ -29,6 +29,7 @@ module Nonprofits
       )
     end
 
+    private
     def required_params
       params.require(:nonprofit_id, card: [:name, :stripe_card_token, :stripe_card_id, :holder_id, :holder_type])
     end