Need to Include dry/monads in sample app to get generators working (#917

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Found another place we need to include the monad lib. This time so that generators work

spec/test_app/config/application.rb

@@ -11,6 +11,7 @@
 require "action_cable/engine"
 # require "rails/test_unit/railtie"
 require "sprockets/railtie"
+require 'dry/monads'
 
 Bundler.require(*Rails.groups)
 require "bulkrax"