Add basic rooms page tests

client/cypress/integration/rooms-page.spec.js

@@ -0,0 +1,9 @@
+describe('The Rooms Page', () => {
+  it.only('goes to the rooms page', () => {
+    cy.login('rahel.cueni', 'test');
+
+    cy.visit('/rooms');
+
+    cy.get('.add-room').should('exist');
+  });
+});