外部タグを分離 (#419) (#420)

**本番 DB のバックアップをかならずすること**

Reviewed-on: #420
Co-authored-by: miteruzo <miteruzo@naver.com>

frontend/src/components/common/PageTitle.tsx

@@ -1,10 +1,8 @@
-import React from 'react'
-
 import { cn } from '@/lib/utils'
 
-import type { FC } from 'react'
+import type { ComponentProps, FC } from 'react'
 
-type Props = { children: React.ReactNode; className?: string }
+type Props = ComponentProps<'h1'>
 
 
 const PageTitle: FC<Props> = ({ children, className, ...rest }) => (