fix(editor): Trial banner does not disappear after sign out (no-changelog) (#6930)

to test in staging use version
`PR-6930-ado-990-trial-banner-does-not-disappear-after-sign-out`

<img width="875" alt="image"
src="https://github.com/n8n-io/n8n/assets/16496553/dfffe60f-bec3-4c48-bd9c-5990c68afa52">

cypress/pages/bannerStack.ts

@@ -0,0 +1,8 @@
+import { BasePage } from './base';
+
+export class BannerStack extends BasePage {
+	getters = {
+		banner: () => cy.getByTestId('banner-stack'),
+	};
+	actions = {};
+}