Merged in feat/SW-3636-storybook-structure (pull request #3309)

feat(SW-3636): Storybook structure

* New sections in Storybook sidebar

* Group Storybook content files and add token files for spacing, border radius and shadows


Approved-by: Joakim Jäderberg

packages/design-system/.storybook/preview.tsx

@@ -60,7 +60,15 @@ const preview: Preview = {
 
     options: {
       storySort: {
-        order: ['Introduction', 'Global', 'Components', 'Compositions', '*'],
+        order: [
+          'Introduction',
+          'Tokens',
+          'Core Components',
+          'Product Components',
+          'Patterns',
+          'Compositions',
+          '*',
+        ],
       },
     },