Dashboards: Enable scenes by default (#93818)

* Mark Scenes feature toggles as GA

* Move old arch e2e to a new folder

* Run E2E on scenes by default

* Upgrade e2e-selectors to ensure the tests in Playwright works

e2e/old-arch/utils/flows/setDashboardTimeRange.ts

@@ -0,0 +1,5 @@
+import { setTimeRange, TimeRangeConfig } from './setTimeRange';
+
+export type { TimeRangeConfig };
+
+export const setDashboardTimeRange = (config: TimeRangeConfig) => setTimeRange(config);