Chore: Login via the API by default in Cypress (#43167)

* Use the api to login in cypress by default

* export getBaseUrl

* Revert "export getBaseUrl"

This reverts commit ae7eecea37.

* just use BASE_URL from the env

* fix exemplars test

* move into separate functions

e2e/shared/smokeTestScenario.ts

@@ -6,6 +6,7 @@ export const smokeTestScenario = {
   addScenarioDataSource: true,
   addScenarioDashBoard: true,
   skipScenario: false,
+  loginViaApi: false,
   scenario: () => {
     e2e.flows.openDashboard();
     e2e.components.PageToolbar.item('Add panel').click();