Fix banUser API call missing enabled parameter (#4742)

The banUser function in ChatModerationService was sending an incomplete
request body to the /api/chat/users/setenabled endpoint. The API requires
both userId and enabled fields, but only userId was being sent.

This caused the endpoint to return a 400 Bad Request with the error:
"must provide userId and enabled state"

Added the missing enabled: false parameter to properly disable the user
when banning.

Co-authored-by: Matt Pruitt <41898282+guitsaru@users.noreply.github.com>

web/services/moderation-service.ts

@@ -28,7 +28,7 @@ class ChatModerationService {
       headers: {
         'Content-Type': 'application/json',
       },
-      body: JSON.stringify({ userId: id }),
+      body: JSON.stringify({ userId: id, enabled: false }),
     };
 
     await fetch(hideMessageUrl, options);