docs: clarify comments

app/controllers/users_controller.rb

@@ -11,10 +11,6 @@ class UsersController < ApplicationController
   before_action -> { filter_manager.serialize_filters_to_session }, if: :current_user, only: %i[index]
 
   def index
-    # CSV requests fall through to the respond_to block below, which returns 401
-    # for non-support users. Only HTML non-support users are redirected. The
-    # redirect must `return`: Rails 8 raises DoubleRenderError if the action then
-    # also renders/heads (previously the later render silently won).
     return redirect_to users_organisation_path(current_user.organisation) unless current_user.support? || request.format.csv?
 
     all_users = User.visible.sorted_by_organisation_and_role

config/application.rb

@@ -20,7 +20,7 @@ Bundler.require(*Rails.groups)
 
 module DataCollector
   class Application < Rails::Application
-    # Initialize configuration defaults for originally generated Rails version.
+    # Initialize configuration defaults for this Rails version.
     config.load_defaults 8.1
 
     # Please, add to the `ignore` list any other `lib` subdirectories that do