fix eslint error

Author: KihwanChoi12

src/core/WebGLPathTracer.js

@@ -306,7 +306,7 @@ export class WebGLPathTracer {
 		}
 
 		// update scene environment
-		material.environmentIntensity = scene.environment !== null ? (scene.environmentIntensity ?? 1) : 0;
+		material.environmentIntensity = scene.environment !== null ? ( scene.environmentIntensity ?? 1 ) : 0;
 		material.environmentRotation.makeRotationFromEuler( scene.environmentRotation ).invert();
 		if ( this._previousEnvironment !== scene.environment ) {
 
@@ -326,7 +326,7 @@ export class WebGLPathTracer {
 
 				}
 
-			} 
+			}
 
 		}