Omnichannel email content is empty and does not show up in Chat

Description:

When sending emails to configured inbox. Email is converted to Chat message but content of email is not show in chat.
There is no different if i will send html email or plain text email.

Steps to reproduce:

1. Setup Email Inbox
2. Send test email to configured inbox

Expected behavior:

I was expecting to see content of email that im sending.

Actual behavior:

Content of email is not visible

Server Setup Information:

• Version of Rocket.Chat Server: 5.4.2
• Operating System: Ubuntu 22.04.1 LTS
• Deployment Method: docker (docker pull registry.rocket.chat/rocketchat/rocket.chat:latest)
• Number of Running Instances: 1
• DB Replicaset Oplog:
• Database Migration: 281 (01.02. 2023 18:24)
• NodeJS Version: v14.19.3
• MongoDB Version: 4.4.15 / wiredTiger (oplog Enabled)

Client Setup Information

• Desktop App or Browser Version: Chrome, Edge
• Operating System: Windows

Additional context

Start by reproducing the configured Email Inbox flow with both HTML and plain-text messages, using the Rocket.Chat 5.4.2 setup described in the issue. Trace where the incoming email is converted into a Chat message and verify that the email content is preserved and displayed; done means the message body appears in Chat for both formats.