scroll and click addFile

apps/remix-ide-e2e/src/commands/addFile.ts

@@ -19,7 +19,7 @@ function addFile (browser: NightwatchBrowser, name: string, content: NightwatchC
     .click('li[data-id="treeViewLitreeViewItembrowser/README.txt"]') // focus on root directory
     .click('.newFile')
     .waitForElementVisible('*[data-id="treeViewLitreeViewItembrowser/blank"]')
-    .click('*[data-id="treeViewLitreeViewItembrowser/blank"] .remixui_items')
+    .scrollAndClick('*[data-id="treeViewLitreeViewItembrowser/blank"] .remixui_items')
     .sendKeys('*[data-id="treeViewLitreeViewItembrowser/blank"] .remixui_items', name)
     .sendKeys('*[data-id="treeViewLitreeViewItembrowser/blank"] .remixui_items', browser.Keys.ENTER)
     .pause(2000)