Shared money input should respond to change in currency (#654)

* Add step method to currency

* Change amount placeholder and step, when currency select change

* Lint

* Add test with auth

* Extract request to specific service

config/importmap.rb

@@ -5,6 +5,7 @@ pin "@hotwired/turbo-rails", to: "turbo.min.js", preload: true
 pin "@hotwired/stimulus", to: "stimulus.min.js"
 pin "@hotwired/stimulus-loading", to: "stimulus-loading.js"
 pin_all_from "app/javascript/controllers", under: "controllers"
+pin_all_from "app/javascript/services", under: "services", to: "services"
 pin "@github/hotkey", to: "@github--hotkey.js" # @3.1.0
 
 # Custom namespace for local files

config/routes.rb

@@ -46,6 +46,8 @@ Rails.application.routes.draw do
     end
   end
 
+  resources :currencies, only: %i[show]
+
   # Reveal health status on /up that returns 200 if the app boots with no exceptions, otherwise 500.
   # Can be used by load balancers and uptime monitors to verify that the app is live.
   get "up" => "rails/health#show", as: :rails_health_check