Move /e2e -> /e2e-tests

e2e-tests/cypress/tests/support/ui/modal.js

@@ -0,0 +1,9 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import * as TIMEOUTS from '../../fixtures/timeouts';
+
+Cypress.Commands.add('uiCloseModal', (headerLabel) => {
+    // # Close modal with modal label
+    cy.get('#genericModalLabel', {timeout: TIMEOUTS.HALF_MIN}).should('have.text', headerLabel).parents().find('.modal-dialog').findByLabelText('Close').click();
+});