chore(storybook): purge custom viewports from storybook preview

.storybook/preview.ts

@@ -5,68 +5,6 @@ import ThemeDecorator from './ThemeDecorator.svelte';
 import '../src/app/styles/app.css';
 
 const preview: Preview = {
-    globalTypes: {
-        viewport: {
-            description: 'Viewport size for responsive design',
-            defaultValue: 'widgetWide',
-            toolbar: {
-                icon: 'view',
-                items: [
-                    {
-                        value: 'reset',
-                        icon: 'refresh',
-                        title: 'Reset viewport',
-                    },
-                    {
-                        value: 'mobile1',
-                        icon: 'mobile',
-                        title: 'iPhone 5/SE',
-                    },
-                    {
-                        value: 'mobile2',
-                        icon: 'mobile',
-                        title: 'iPhone 14 Pro Max',
-                    },
-                    {
-                        value: 'tablet',
-                        icon: 'tablet',
-                        title: 'iPad (Portrait)',
-                    },
-                    {
-                        value: 'desktop',
-                        icon: 'desktop',
-                        title: 'Desktop (Small)',
-                    },
-                    {
-                        value: 'widgetMedium',
-                        icon: 'view',
-                        title: 'Widget Medium',
-                    },
-                    {
-                        value: 'widgetWide',
-                        icon: 'view',
-                        title: 'Widget Wide',
-                    },
-                    {
-                        value: 'widgetExtraWide',
-                        icon: 'view',
-                        title: 'Widget Extra Wide',
-                    },
-                    {
-                        value: 'fullWidth',
-                        icon: 'view',
-                        title: 'Full Width',
-                    },
-                    {
-                        value: 'fullScreen',
-                        icon: 'expand',
-                        title: 'Full Screen',
-                    },
-                ],
-                dynamicTitle: true,
-            },
-        },
-    },
     parameters: {
         layout: 'padded',
         controls: {
@@ -195,10 +133,11 @@ const preview: Preview = {
             },
         }),
         // Wrap with StoryStage for presentation styling
-        story => ({
+        (story, context) => ({
             Component: StoryStage,
             props: {
                 children: story(),
+                maxWidth: context.parameters.storyStage?.maxWidth,
             },
         }),
     ],