Issue #3265617 by nod_, longwave: Update Nightwatch to 2.x

...ules/toolbar/tests/src/Nightwatch/Tests/toolbarApiTest.js

...modules/toolbar/tests/src/Nightwatch/Tests/toolbarTest.js

core/package.json

core/tests/Drupal/Nightwatch/Commands/drupalCreateRole.js

core/tests/Drupal/Nightwatch/Commands/drupalCreateUser.js

core/tests/Drupal/Nightwatch/Commands/drupalLogin.js

...sts/Drupal/Nightwatch/Tests/Olivero/oliveroCommentTest.js

...Drupal/Nightwatch/Tests/Olivero/oliveroDesktopMenuTest.js

.../Drupal/Nightwatch/Tests/Olivero/oliveroMobileMenuTest.js

...ts/Olivero/oliveroPreprocessFieldMultipleValueFormTest.js

...al/Nightwatch/Tests/Olivero/oliveroPreprocessInputTest.js

...Drupal/Nightwatch/Tests/Olivero/oliveroPrimaryTabsTest.js

.../Drupal/Nightwatch/Tests/Olivero/oliveroSearchFormTest.js

...Nightwatch/Tests/Olivero/oliveroStickyHeaderToggleTest.js

core/tests/Drupal/Nightwatch/Tests/exampleTest.js

...tests/Drupal/Nightwatch/Tests/jQueryUIPositionShimTest.js

core/tests/Drupal/Nightwatch/Tests/jsDeprecationTest.js

core/tests/Drupal/Nightwatch/Tests/loginTest.js

core/tests/Drupal/Nightwatch/nightwatch.conf.js

core/yarn.lock