chore: fix sample import

samples/physics/Sample_MultipleShapes.ts

@@ -1,5 +1,5 @@
 import { Engine3D, LitMaterial, MeshRenderer, BoxGeometry, Object3D, Scene3D, View3D, Object3DUtil, Vector3, AtmosphericComponent, DirectLight, SphereGeometry, CameraUtil, HoverCameraController, BitmapTexture2D, VertexAttributeName, Color, CylinderGeometry, TorusGeometry, ComponentBase } from "@orillusion/core";
-import { TerrainGeometry } from "@orillusion/effect";
+import { TerrainGeometry } from "@orillusion/geometry";
 import { Graphic3D } from "@orillusion/graphic";
 import { Ammo, CollisionShapeUtil, Physics, Rigidbody } from "@orillusion/physics";
 import { Stats } from "@orillusion/stats";