fix: MoveButton 의 비공개 포스트 화면 표시 현상 해결

[msung99]

작업 내용 (Work Content)

• PostFooter 의 MoveButton 에 비공개 포스트로 이동할 수 있는 기능이 제공되고 있었다.
• MoveButton 을 통해이동이 불가능하도록 막았다.
• Oops... There is no contents 😵 가 표시된다.

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관련 이슈 넘버 (Related Issue Number)

4

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