Chore: Switch from Carrierwave to ActiveStorage (#393)

spec/factories/facebook_message/incoming_fb_text_message.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+FactoryBot.define do
+  factory :incoming_fb_text_message, class: Hash do
+    sender { { id: '3383290475046708' } }
+    recipient { { id: '117172741761305' } }
+    message { { mid: 'm_KXGKDUpO6xbVdAmZFBVpzU1AhKVJdAIUnUH4cwkvb_K3iZsWhowDRyJ_DcowEpJjncaBwdCIoRrixvCbbO1PcA', text: 'facebook message' } }
+    text { 'facebook message' }
+
+    initialize_with { attributes }
+  end
+end