fix: ai artifact preview styles (#13203)

source: https://x.com/yisibl/status/1944679763991568639

#### PR Dependency Tree


* **PR #13203** 👈

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Style**
  * Updated global text spacing for improved visual consistency.
* Enhanced scrolling behavior and layout in artifact preview and code
artifact components for smoother navigation.
* Refined document composition preview styling for improved layout
control.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->





#### PR Dependency Tree


* **PR #13203** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

packages/frontend/component/src/theme/global.css

@@ -6,6 +6,7 @@
 
 :root {
   --noise-background: url(./noise.avif);
+  text-autospace: normal;
 }
 
 html,