fix: Automatically remove expired story mention (#5300)

When a user mentions the connected Instagram page in a story, the story's content is downloaded in Chatwoot, then if the user deletes the story, the content persists in the platform.

fixes: #5258

app/builders/messages/messenger/message_builder.rb

@@ -46,6 +46,7 @@ class Messages::Messenger::MessageBuilder
   end
 
   def update_attachment_file_type(attachment)
+    return if @message.reload.attachments.blank?
     return unless attachment.file_type == 'share' || attachment.file_type == 'story_mention'
 
     attachment.file_type = file_type(attachment.file&.content_type)
@@ -62,6 +63,7 @@ class Messages::Messenger::MessageBuilder
     story_sender = result['from']['username']
     message.content_attributes[:story_sender] = story_sender
     message.content_attributes[:story_id] = story_id
+    message.content_attributes[:image_type] = 'story_mention'
     message.content = I18n.t('conversations.messages.instagram_story_content', story_sender: story_sender)
     message.save!
   end
@@ -74,6 +76,7 @@ class Messages::Messenger::MessageBuilder
     raise
   rescue Koala::Facebook::ClientError => e
     # The exception occurs when we are trying fetch the deleted story or blocked story.
+    @message.attachments.destroy_all
     @message.update(content: I18n.t('conversations.messages.instagram_deleted_story_content'))
     Rails.logger.error e
     {}