Fix JS style issue

Author: tushuhei

javascript/src/tests/test_html_processor.ts

@@ -102,7 +102,7 @@ describe('HTMLProcessor.applyToElement.separator.node', () => {
   it('should clone separator element deeply', () => {
     expect(document.body.innerHTML).toEqual(
       '<div class="applied">今日は' +
-        '<span style="white-space: normal;">\u200B</span>良い'+
+        '<span style="white-space: normal;">\u200B</span>良い' +
         '<span style="white-space: normal;">\u200B</span>天気</div>'
     );
   });