ユーザ間チャットを無効にするオプションを追加

On a somewhat related note, we recently improved chat flags to work the same way as post flags. Additionally, we enabled them in DMs, which wasn’t possible until now. When a personal chat message gets flagged, we’ll include a transcript of the previous ones (up to ten) only available to moderators, so they can have more context before making a decision.

Relevant PR with some images:

「いいね!」 7