Rename service and use #call

app/serializers/api/enterprise_shopfront_list_serializer.rb

@@ -19,7 +19,7 @@ module Api
         producer_shop: "map_003-producer-shop.svg",
         producer: "map_001-producer-only.svg",
       }
-      ImagePathService.image_path(icons[enterprise.category])
+      ImagePathGenerator.call(icons[enterprise.category])
     end
 
     def icon_font

app/services/image_path_generator.rb

@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
-class ImagePathService
+class ImagePathGenerator
   # Since Rails 4 has adjusted the way assets paths are handled, we have to access certain
   # asset-based helpers like this when outside of a view or controller context.
   # See: https://stackoverflow.com/a/16609815
-  def self.image_path(path)
+  def self.call(path)
     ActionController::Base.helpers.image_path(path)
   end
 end