Is your feature request related to a problem? Please describe.
When fast talking, like in brainstorms, there is the need to just push images, videos and text docs into the conversation. Most of the time, without the need to open the link just to see the idea. Actually, opening the link is most of the times a waste of time since we're just passing an idea or a concept.

Describe the solution you'd like
It would be a great deal to have external link previews, like in other messengers, where they load a thumbnail of the page, image or video.

Describe alternatives you've considered
None.

Additional context
None.