OZG-5832 fix typo

alfa-client/libs/design-system/src/lib/icons/file-icon/file-icon.stories.ts

@@ -25,7 +25,7 @@ export const Default: Story = {
     },
     fileType: {
       control: 'select',
-      options: ['pdf', 'xnl', 'doc', 'image', 'json', 'exclamation'],
+      options: ['pdf', 'xml', 'doc', 'image', 'json', 'exclamation'],
       description: 'Type of file icon',
       table: {
         defaultValue: { summary: 'xml' },