오래된 주제에 답변할 때 마지막 기회 경고 표시를 위한 컴포넌트 생성

[Moin]

@JammyDodger

Hopefully David fixes Warn admins/tl4 when replying to closed topics and then you can see what needs changing in your own one.

Maybe Unformatted Code Detector could work as an example for a new component. That also shows a warning when you try to post.