Issue Summary

When an agent adds an inline attachment, it doesn't show up in the customer portal, but the word [mediaInline] appears.
It also affects customer notifications where the attachment will show as [ˆ.........].

Steps to Reproduce

1. Add a public comment with an inline attachment ((pasting the file (CSV, txt, JSON, pdf, etc)) in the agent view. 
   
2. Check the result in the portal.

Expected Results

The customer should be able to view and download the file through the portal.

Actual Results

The file appears as [mediaInline]:

Workaround

If the agent adds the attachment using the attachment button or adds it to a new line, it will show up in the portal.