Fixes
https://linear.app/chatwoot/issue/CW-3497/instagram-outgoing-attachments-are-not-rendering
It seems like Instagram outgoing attachment rendering has been broken
for a long time. We couldn't identify the issue because the check below
only inspects Instagram mentions.
```
metadata[:data_url] = metadata[:thumb_url] = external_url if message.instagram_story_mention?
```
We recently worked on adding the [Instagram CDN URL for
attachments.](https://github.com/chatwoot/chatwoot/pull/9287)
After that, it started using external URLs as attachment data URLs for
both outgoing and incoming attachments. The rendering broken for all the
outgoing attachments since there were no external URLs, making the data
URL empty. Adding an incoming message check will solve the issue.
---------
Co-authored-by: Sojan <sojan@pepalo.com>
3edc636b76