TS: Clean up

examples/jsm/loaders/DDSLoader.d.ts

@@ -11,6 +11,7 @@ export interface DDS {
   height: number;
   format: PixelFormat | CompressedPixelFormat;
   mipmapCount: number;
+	isCubemap: boolean;
 }
 
 export class DDSLoader extends CompressedTextureLoader {