Prediction: force syncInterval=0 for now to reduce risks of projects misconfiguring this

Assets/Mirror/Components/PredictedRigidbody/PredictedRigidbody.cs

@@ -626,6 +626,11 @@ protected override void OnValidate()
 
             // force syncDirection to be ServerToClient
             syncDirection = SyncDirection.ServerToClient;
+
+            // state should be synced immediately for now.
+            // later when we have prediction fully dialed in,
+            // then we can maybe relax this a bit.
+            syncInterval = 0;
         }
     }
 }