Apply review suggestions

Jellyfin.Api/WebSocketListeners/ActivityLogWebSocketListener.cs

@@ -58,7 +58,11 @@ public class ActivityLogWebSocketListener : BasePeriodicWebSocketListener<Activi
         base.Dispose(dispose);
     }
 
-    private new void Start(WebSocketMessageInfo message)
+    /// <summary>
+    /// Starts sending messages over an activity log web socket.
+    /// </summary>
+    /// <param name="message">The message.</param>
+    protected override void Start(WebSocketMessageInfo message)
     {
         if (!message.Connection.AuthorizationInfo.User.HasPermission(PermissionKind.IsAdministrator))
         {