Examples: Clean up. (#30432)

examples/webgpu_compute_particles_snow.html

@@ -14,8 +14,8 @@
 		<script type="importmap">
 			{
 				"imports": {
-					"three": "../src/Three.WebGPU.js",
-					"three/webgpu": "../src/Three.WebGPU.js",
+					"three": "../build/three.webgpu.js",
+					"three/webgpu": "../build/three.webgpu.js",
 					"three/tsl": "../build/three.tsl.js",
 					"three/addons/": "./jsm/",
 					"stats-gl": "https://cdn.jsdelivr.net/npm/stats-gl@3.6.0/dist/main.js"

examples/webgpu_struct_drawindirect.html

@@ -15,9 +15,9 @@
 		<script type="importmap">
 			{
 				"imports": {
-					"three": "../src/three.webgpu.js",
-					"three/webgpu": "../src/three.webgpu.js",
-					"three/tsl": "../src/three.tsl.js",
+					"three": "../build/three.webgpu.js",
+					"three/webgpu": "../build/three.webgpu.js",
+					"three/tsl": "../build/three.tsl.js",
 					"three/addons/": "./jsm/"
 				}
 			}