The target="_blank" in <a> elements inside a link preview are missing

Description:

The anchor elements inside the link content preview sections of a link are missing the target="_blank" attribute,

The quote element (link's content preview)

<blockquote class="twitter-tweet">
  <p lang="en" dir="ltr"> I always wondered what I should get a tattoo of, now I don't have to wonder any more <a href="https://t.co/9UqGSs0OcO">pic.twitter.com/9UqGSs0OcO</a>
  </p>— Jeff Atwood (@codinghorror) <a href="https://twitter.com/codinghorror/status/1467258675307814914?ref_src=twsrc%5Etfw">December 4, 2021</a>
</blockquote>

Steps to reproduce:

1- Copy a link (Such as a link to a tweet)
2- Paste it into a conversation's message box, and send it
3- Click on a link from inside that link's preview section (as highlighted above)

Expected behavior:

The link must open in a separate tab since it's a link to an external source.

Actual behavior:

The link opens up in the same tab as Rocket chat. This is more of an issue in Rocketchat's desktop client since there's no back button in the desktop version. Whereas you can just click the back button, and go back to the page that you were on before (RC)

What happens in the Desktop client:

Server Setup Information:

Irrelevant.

Client Setup Information

• Desktop App or Browser Version: Desktop: latest, Browser: Chrome 96
• Operating System: Windows 10

The issue names no files or tests. Start by reproducing the link preview behavior in the browser or desktop client, then trace the link-preview rendering path. Done means links inside external previews open in a separate tab without replacing the Rocket.Chat view.