rails: do not require active_storage and action_cable

Need to require all railties separately so we can pick from them.
We are not using the two so better not require them either.

fixes #298.

config/application.rb

@@ -3,7 +3,16 @@ require_relative '../lib/crabgrass/info.rb'
 info 'LOAD FRAMEWORK'
 require_relative 'boot'
 
-require 'rails/all'
+require 'rails'
+require 'active_record/railtie'
+# require 'active_storage/engine'
+require 'action_controller/railtie'
+require 'action_view/railtie'
+require 'action_mailer/railtie'
+require 'active_job/railtie'
+# require 'action_cable/engine'
+require 'rails/test_unit/railtie'
+require 'sprockets/railtie'
 
 # Require the gems listed in Gemfile, including any gems
 # you've limited to :test, :development, or :production.