feat: add translation test first pass

sites/public/cypress/e2e/pages/navigation.spec.ts

@@ -0,0 +1,26 @@
+describe("Navigation elements", function () {
+  it("updates nav links based on translation", () => {
+    cy.visit("/")
+    cy.get("button").contains("Español").click()
+    cy.url().should("include", "/es")
+    // TODO - get all a tags and exclude the external ones
+    cy.get('nav')
+    .find('a')
+    .should('have.length.greaterThan', 0)
+    .each(($a) => {
+        expect($a.attr('href')).to.contain('es')
+        cy.log(`${$a.text()}: ${$a.attr('href')}`)
+    })
+  });
+
+  it("renders each page in the selected language", function () {
+    cy.visit("/")
+    cy.get("button").contains("Español").click()
+    cy.url().should("include", "/es")
+    cy.document()
+    .then((doc) => {
+        expect(doc.documentElement.lang).to.eq("es")
+    })
+    // TODO - navigate through site to verify click navigation keeps language selection
+  })
+})