[IDOR][translate.twitter.com] Opportunity to change any comment at the forum

How it was found

POC: https://translate.twitter.com/forum/getting-started/topics/7037/posts/43287/edit Steps to reproduce:

1. Go to any forums topic for example: https://translate.twitter.com/forum/getting-started/topics/7037
2. View source code of the page and take post id (screenshot "idor edit.jpg")
3. Append "/posts/post_id/edit" to url at the first step (screenshot "idor edit 2.jpg")
4. Make some change at the comment and save it