WGSLNodeBuilder: Improves code formatting (#32511)

src/renderers/webgpu/nodes/WGSLNodeBuilder.js

@@ -1840,9 +1840,7 @@ ${ flowData.code }
 
 		}
 
-		let code = bindingSnippets.join( '\n' );
-		code += bufferSnippets.join( '\n' );
-		code += structSnippets.join( '\n' );
+		const code = [ ...bindingSnippets, ...bufferSnippets, ...structSnippets ].join( '\n' );
 
 		return code;