fix: ai notice layout

Author: abose

docs/02-control-ai.md

@@ -11,6 +11,7 @@ import TabItem from '@theme/TabItem';
 
 :::info Important Timeline
 Phoenix Code AI will be rolled out after May 20, 2025. AI features will require both a Phoenix Code account login with a free/pro AI plan and explicit user opt-in.
+
 Educational institutions should configure AI controls campus-wide before this date to disable AI.
 :::