feat: support reply to for Telegram (#8105)

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/services/telegram/incoming_message_service.rb

@@ -19,6 +19,7 @@ class Telegram::IncomingMessageService
       inbox_id: @inbox.id,
       message_type: :incoming,
       sender: @contact,
+      content_attributes: telegram_params_content_attributes,
       source_id: telegram_params_message_id.to_s
     )
 

app/services/telegram/param_helpers.rb

@@ -6,6 +6,13 @@ module Telegram::ParamHelpers
     params.dig(:message, :chat, :type) == 'private'
   end
 
+  def telegram_params_content_attributes
+    reply_to = params.dig(:message, :reply_to_message, :message_id)
+    return { 'in_reply_to_external_id' => reply_to } if reply_to
+
+    {}
+  end
+
   def message_params?
     params[:message].present?
   end