Artifact Preview Not Updating During Streaming Updates

[nedicp]

Description
When streaming updates to an artifact, the preview remains static and shows only the initial version instead of reflecting the latest updates.

Reproduction Steps

1. Create an artifact with initial content
2. Stream updates to the artifact
3. Observe the preview component

Expected Behavior
The preview should update in real-time to reflect the latest streamed content.

Current Behavior
The initially generated preview does not reflect updates performed in updated artifact.