Link preview should not enlarge small images

[paulchen]

Description:

When a user creates a message containing a link to an image, the app shows a preview of that image. The preview is resized in order for its width to match the width available for the message content. While this works fine for large images, (very) small images get enlarged by enormous factors.

Environment Information:

• Rocket.Chat Server Version: 6.5.3
• Rocket.Chat App Version: 4.45.0.55377
• Device Name: ELE-L29 (Huawei P30)
• OS Version: EMUI 12.0.0 (Android 11)

Steps to reproduce:

1. Write a message containing a link to a very small image, e.g. https://rueckgr.at/~paulchen/avatar-small.png (24x24 px).

Expected behavior:

The image is not unnecessarily enlarged for the link preview. This is how it looks like in a desktop browser:

And in the mobile browser:

Actual behavior:

[preeesha]

Hey @diegolmello, should I start working on this issue?