Repro/settings spinner (#12958)

* outline for repro

* repro of issue

frontend/test/metabase/scenarios/admin/settings/spinner.cy.spec.js

+import { restore, signInAsAdmin } from "__support__/cypress";
+
+describe("scenarios > admin > spinner", () => {
+  before(restore);
+  beforeEach(signInAsAdmin);
+
+  describe("API request", () => {
+    it("should return correct DB", () => {
+      cy.visit("/admin/databases/1");
+      cy.findByText("Sample Dataset");
+      cy.findByText("Add Database").should("not.exist");
+    });
+
+    it.skip("should not spin forever if it returns an error (Issue #11037)", () => {
+      cy.visit("/admin/databases/999");
+      cy.findAllByText("Databases").should("have.length", 2);
+      cy.findByText("Loading...").should("not.exist");
+    });
+  });
+});