feat: storybook 추가

web-app/app/shared/components/switch/Switch.tsx

@@ -1,11 +1,11 @@
-import React from 'react';
+import type { ReactNode } from 'react';
 import { Switch as AriaSwitch, SwitchProps as AriaSwitchProps } from 'react-aria-components';
 
 import clsx from 'clsx';
 import { tv } from 'tailwind-variants';
 
 export interface SwitchProps extends Omit<AriaSwitchProps, 'children'> {
-  children?: React.ReactNode;
+  children?: ReactNode;
 }
 
 const track = tv({