feat: add story for snackbar

src/components/snackbar/snackbar.stories.tsx

@@ -0,0 +1,18 @@
+import type { Meta, StoryObj } from '@storybook/react';
+
+import { Snackbar } from './snackbar';
+
+const meta: Meta<typeof Snackbar> = {
+  component: Snackbar,
+  title: 'Snackbar',
+};
+
+export default meta;
+
+type Story = StoryObj<typeof meta>;
+
+export const Default: Story = {
+  args: {
+    message: 'Hello World',
+  },
+};