[v9.5.x] Navigation: Redirect to root page when switching organization (#66658)

Navigation: Redirect to root page when switching organization (#66655)

* just redirect to root when switching org

* remove old orgswitcher modal

(cherry picked from commit 90f0b1c6e2)

Co-authored-by: Ashley Harrison <ashley.harrison@grafana.com>

public/app/core/components/AppChrome/Organization/OrganizationSwitcher.tsx

@@ -18,7 +18,7 @@ export function OrganizationSwitcher() {
   const onSelectChange = (option: SelectableValue<UserOrg>) => {
     if (option.value) {
       setUserOrganization(option.value.orgId);
-      locationService.partial({ orgId: option.value.orgId }, true);
+      locationService.push(`/?orgId=${option.value.orgId}`);
       // TODO how to reload the current page
       window.location.reload();
     }