Attachments rendered in MessagesScreen are too huge on Android, it should use a preview instead

[geolyth]

Describe the bug
Currently attachments (like images) are too huge to be rendered.

SDK version

• 6.30.0

To Reproduce

1. Share an attachment (image) into a chat
2. Size of the attachment is too huge and took all the screen to be rendered

Expected behavior
Show a smaller preview of the attachment (when possible) instead of real shared one into the message

Device:

• Vendor and model: Any
• Android version: Any