Add a basic hello world story for MainMediaGallery component

Co-authored-by: Jamie B <[email protected]>
Co-authored-by: Ravi Lal <[email protected]>

Author: 3 people

dotcom-rendering/src/components/MainMediaGallery.stories.tsx

@@ -0,0 +1,15 @@
+import type { Meta, StoryObj } from '@storybook/react';
+import { MainMediaGallery } from './MainMediaGallery';
+
+const meta = {
+	title: 'Components/MainMediaGallery',
+	component: MainMediaGallery,
+} satisfies Meta<typeof MainMediaGallery>;
+
+export default meta;
+
+type Story = StoryObj<typeof meta>;
+
+export const FirstStory = {
+	args: {},
+} satisfies Story;

dotcom-rendering/src/components/MainMediaGallery.tsx

@@ -0,0 +1 @@
+export const MainMediaGallery = () => <>Hello world</>;