Feat: send fb message outside of standard messaging window (#4439)

app/models/conversation.rb

@@ -90,10 +90,20 @@ class Conversation < ApplicationRecord
   delegate :auto_resolve_duration, to: :account
 
   def can_reply?
+    return last_message_less_than_24_hrs? if additional_attributes['type'] == 'instagram_direct_message'
+
     return true unless inbox&.channel&.has_24_hour_messaging_window?
 
-    last_incoming_message = messages.incoming.last
+    return false if last_incoming_message.nil?
 
+    last_message_less_than_24_hrs?
+  end
+
+  def last_incoming_message
+    messages&.incoming&.last
+  end
+
+  def last_message_less_than_24_hrs?
     return false if last_incoming_message.nil?
 
     Time.current < last_incoming_message.created_at + 24.hours