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/lib/components/Toasts/Toast.stories.tsx

@@ -6,7 +6,7 @@ import { expect } from 'storybook/test'
 import { config } from './variants.ts'
 
 const meta: Meta<typeof Toast> = {
-  title: 'Components/Toasts/Toast',
+  title: 'Core Components/Toast/Toast',
   component: Toast,
   argTypes: {
     variant: {

packages/design-system/lib/components/Toasts/ToastHandler.stories.tsx

@@ -9,7 +9,7 @@ import { Button } from '../Button/Button.tsx'
 import { expect, waitFor } from 'storybook/test'
 
 const meta: Meta<typeof Toast> = {
-  title: 'Components/Toasts/ToastHandler',
+  title: 'Core Components/Toast/ToastHandler',
   component: Toast,
   argTypes: {
     variant: {