Gherkin cypress spike (#673)

* integrate gherkin/cucumber w/ cypress

- change cypress.json config from e2e back to standard integration
- add cypress-cucumber-preprocessor
- add integration test of about page

* add a title to each page

* add intl to the 404 page

* Refactor explore tool page

- add intl to static strings
- replace component css with <Grid> layout

* Add title to contact page

* add intl to title of page

* Add gherkin tests for nav to about page

- navigate from any page to the about page
- ensure each link has the title correct on that page

client/cypress/integration/LegacyTests/language.spec.js

@@ -0,0 +1,15 @@
+// / <reference types="Cypress" />
+
+describe('Translation Test', () => {
+  it('Sets default language to /en and redirects', () => {
+    cy.visit('http://localhost:8000');
+    cy.url().should('include', '/en/');
+    cy.get('[data-cy=about-screen-tool-heading]').contains('About the screening tool');
+  });
+
+  // Todo VS: Understand how to create es content
+  // it('Sets page content to spanish when visiting Spanish URL', () => {
+  //   cy.visit('http://localhost:8000/es');
+  //   cy.get('h1').contains('Acerca de Justice40');
+  // });
+});