Import: prevent recursion blowup in redux + reintroduce import e2e test (#52985)

* prevent recursion blowup in redux, attempt to reintroduce import e2e test

* try importing json like this instead?

* need the panel validation

* Update text so it finds Panel data instead of Dataframe JSON

* skip test for now

e2e/dashboards-suite/import-dashboard.spec.ts

@@ -1,12 +1,14 @@
 import { e2e } from '@grafana/e2e';
 
+import testDashboard from '../dashboards/TestDashboard.json';
+
 e2e.scenario({
   describeName: 'Import Dashboards Test',
   itName: 'Ensure you can import a number of json test dashboards from a specific test directory',
   addScenarioDataSource: false,
   addScenarioDashBoard: false,
-  skipScenario: true,
+  skipScenario: false,
   scenario: () => {
-    e2e.flows.importDashboards('/dashboards', 1000);
+    e2e.flows.importDashboard(testDashboard, 1000);
   },
 });