fix: Move content into to frontend directory

Doing this BEFORE the merge prevents a lot of merge conflicts.

Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>

frontend/cypress/e2e/motd.spec.ts

@@ -0,0 +1,37 @@
+/*
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+const MOTD_LOCAL_STORAGE_KEY = 'motd.lastModified'
+const MOCK_LAST_MODIFIED = 'mockETag'
+const motdMockContent = 'This is the **mock** Motd call'
+const motdMockHtml = 'This is the <strong>mock</strong> Motd call'
+
+describe('Motd', () => {
+  it("shows, dismisses and won't show again a motd modal", () => {
+    localStorage.removeItem(MOTD_LOCAL_STORAGE_KEY)
+    cy.intercept('GET', 'public/motd.md', {
+      statusCode: 200,
+      headers: { 'Last-Modified': MOCK_LAST_MODIFIED },
+      body: motdMockContent
+    })
+
+    cy.intercept('HEAD', 'public/motd.md', {
+      statusCode: 200,
+      headers: { 'Last-Modified': MOCK_LAST_MODIFIED }
+    })
+    cy.visitHome()
+    cy.getMotdBody().should('contain.html', motdMockHtml)
+    cy.getByCypressId('motd-dismiss')
+      .click()
+      .then(() => {
+        expect(localStorage.getItem(MOTD_LOCAL_STORAGE_KEY)).to.equal(MOCK_LAST_MODIFIED)
+      })
+    cy.getByCypressId('motd-modal').should('not.exist')
+    cy.reload()
+    cy.get('main').should('exist')
+    cy.getByCypressId('motd-modal').should('not.exist')
+  })
+})