Show downloaded images in message bubble.

[josefinalliende]

We want to add images #707 . We need to show dowloaded media in the message bubble.

For media that is not yet downloaded, in this issue just the blurhash will be shown

Figma: https://www.figma.com/design/dGJqv6m6pchdcwxJEwxxzB/White-Noise---Design-System?node-id=3649-46190&t=f1kneBYG4ST91had-0