[docs] Fix programmatic control demo styles

Author: x0k

.changeset/some-tips-fall.md

@@ -0,0 +1,5 @@
+---
+"docs2": patch
+---
+
+Fix programmatic control demo styles

apps/docs2/src/content/docs/guides/programmatic-control.mdx

@@ -4,7 +4,9 @@ sidebar:
   order: 70
 ---
 
-import { Code, Card } from '@astrojs/starlight/components';
+import { Code } from '@astrojs/starlight/components';
+
+import FormCard from '@/components/form-card.astro'
 
 import Form from './programmatic-control.svelte';
 import formCode from './programmatic-control.svelte?raw';
@@ -13,6 +15,6 @@ You can bind to the from element to control it programmatically:
 
 <Code code={formCode} lang="svelte" />
 
-<Card>
+<FormCard>
   <Form client:only="svelte" />
-</Card>
+</FormCard>