Add images select and preview UI

[josefinalliende]

We want to add images #707 . This issue will be executed in steps. First step is to allow users to select images, and preview them in the chat input.

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