🎨 공용 컴포넌트 추가 (드롭다운, 헤더, 페이지 컨테이너)

src/widgets/pageContainer/index.ts

@@ -0,0 +1 @@
+export * from './ui';

src/widgets/pageContainer/ui/PageContainer.tsx

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+import { Header } from '@/shared/ui';
+import type { IHeader } from '@/shared/ui/header/ui/Header';
+
+export interface IPageContainer {
+  headerProps: IHeader;
+  hasHeader?: boolean;
+  children?: JSX.Element;
+}
+export default function PageContainer({ headerProps, hasHeader = true, children }: IPageContainer) {
+  return (
+    <div>
+      {hasHeader && <Header {...headerProps} />}
+      <div className={`${hasHeader ? 'mt-[44px]' : ''}`}>{children}</div>
+    </div>
+  );
+}