Add scroll to 'nested_folders_images' test when unable to find 'Home' link in the viewport

    And I should see "Upload of Image1.jpg to Folder1 complete" # BehatMaharaCoreContext::assertPageContainsText()
    And I follow "Home" # BehatMaharaCoreContext::clickLink()
      unknown error: Element <a href="http://localhost:8000/artefact/file/index.php?folder=0" class="secondary-link changefolder ui-droppable">...</a> is not clickable at point (155, 81). Other element would receive the click: <img src="http://localhost:8000/theme/raw/images/site-logo.svg?v=5609" alt="Mahara - Acceptance test site" data-customlogo="0">
        (Session info: chrome=96.0.4664.45)
        (Driver info: chromedriver=2.38.552522 (437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb),platform=Linux 5.4.0-91-generic x86_64) (WebDriver\Exception\UnknownError)
    And I scroll to the base of id "files_filebrowser_upload_container"