fix: Update mail check for html_part (#7273)

app/jobs/inboxes/fetch_imap_emails_job.rb

@@ -125,7 +125,7 @@ class Inboxes::FetchImapEmailsJob < ApplicationJob
   rescue StandardError => e
     ChatwootExceptionTracker.new(e, account: channel.account).capture_exception
     Rails.logger.error("
-      #{channel.provider} Email dropped: #{inbound_mail.from} and message_source_id: #{inbound_mail.message_id}, message_id: #{message_id}")
+      #{channel.provider} Email dropped: #{inbound_mail.from} and message_source_id: #{inbound_mail.message_id}")
   end
 
   # Making sure the access token is valid for microsoft provider

app/mailboxes/mailbox_helper.rb

@@ -38,11 +38,9 @@ module MailboxHelper
   end
 
   def embed_inline_image_source(mail_attachment)
-    current_mail = processed_mail.mail
-
-    if current_mail.html_part.present?
+    if processed_mail.serialized_data[:html_content].present?
       upload_inline_image(mail_attachment)
-    elsif current_mail.text_part.present?
+    elsif processed_mail.serialized_data[:text_content].present?
       embed_plain_text_email_with_inline_image(mail_attachment)
     end
   end