test(menu): fix snapshot test

Author: brandyscarney

ionic/components/menu/test/basic/e2e.ts

@@ -5,5 +5,5 @@ it('should toggle open menu', function() {
 
 
 it('should close menu', function() {
-  element(by.css('[menuClose=leftMenu]')).click();
+  element(by.css('[menuClose=left]')).click();
 });