docs(ffe-collapse-react): added storybook example

packages/ffe-collapse-react/src/Collapse.stories.tsx

@@ -0,0 +1,38 @@
+import React, { useState } from 'react';
+import { Collapse } from './Collapse';
+import type { StoryObj, Meta } from '@storybook/react';
+import { ExpandButton } from '@sb1/ffe-buttons-react';
+
+const meta: Meta<typeof Collapse> = {
+    title: 'components/collapse/Collapse',
+    component: Collapse,
+    tags: ['autodocs'],
+    argTypes: {},
+};
+export default meta;
+
+type Story = StoryObj<typeof Collapse>;
+
+export const Standard: Story = {
+    args: {},
+    render: function Render() {
+        const [isOpen, setOpen] = useState(false);
+
+        return (
+            <>
+                <ExpandButton
+                    isExpanded={isOpen}
+                    onClick={() => setOpen(!isOpen)}
+                >
+                    {isOpen ? 'Collapse' : 'Expand'}
+                </ExpandButton>
+                <Collapse isOpen={isOpen}>
+                    <div>
+                        <p>Hello world</p>
+                        <p>Hello world</p>
+                    </div>
+                </Collapse>
+            </>
+        );
+    },
+};