Apply minor suggestions from code review

Author: tbonelee

zeppelin-web-angular/e2e/models/notebook-action-bar-page.ts

@@ -89,6 +89,7 @@ export class NotebookActionBarPage extends BasePage {
     await this.clearOutputButton.click();
   }
 
+
   async switchToPersonalMode(): Promise<void> {
     await this.personalModeButton.click();
   }
@@ -109,6 +110,7 @@ export class NotebookActionBarPage extends BasePage {
     await this.commitConfirmButton.click();
   }
 
+
   async openRevisionDropdown(): Promise<void> {
     await this.revisionDropdown.click();
   }