style(storybook): refine patterns data and layout stories

src/patterns/dashboard-layout.stories.tsx

@@ -429,7 +429,7 @@ const frame = (height?: number): CSSProperties | undefined => (height ? ({ "--hm
 // story composition here prevents the export from becoming a second hand-written UI.
 export function DashboardAll() {
   return (
-    <StoryPage>
+    <StoryPage className="dashboard-all-page">
       <StoryPageHeader title="Dashboard" />
       <StorySection title="Overview">
         <DashboardScreen mode="compact" />