Enables GraphQL UI in production

Gemfile

@@ -72,6 +72,7 @@ gem 'rails-assets-markdown-it', source: 'https://rails-assets.org'
 gem 'cocoon'
 
 gem 'graphql', '~> 1.6.3'
+gem 'graphiql-rails', '~> 1.4.1'
 
 group :development, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console
@@ -108,7 +109,6 @@ end
 group :development do
   # Access an IRB console on exception pages or by using <%= console %> in views
   gem 'web-console', '3.3.0'
-  gem 'graphiql-rails', '~> 1.4.1'
 end
 
 eval_gemfile './Gemfile_custom'

config/routes.rb

@@ -406,9 +406,9 @@ Rails.application.routes.draw do
 
   if Rails.env.development?
     mount LetterOpenerWeb::Engine, at: "/letter_opener"
-    mount GraphiQL::Rails::Engine, at: '/graphiql', graphql_path: '/graphql'
   end
 
+  mount GraphiQL::Rails::Engine, at: '/graphiql', graphql_path: '/graphql'
   mount Tolk::Engine => '/translate', :as => 'tolk'
 
   # more info pages