[PM-18870] Convert Organization to Business Unit (#14131)

* Add setupBusinessUnit to OrganizationBillingApiService

* Add setup-business-unit.component

* Updated designs and cleanup work

* Update existing logos for Provider Portal and Admin Console

* Fix broken test

apps/web/src/app/billing/services/billing-notification.service.ts

@@ -32,4 +32,12 @@ export class BillingNotificationService {
       message: message,
     });
   }
+
+  showError(message: string, title: string = "") {
+    this.toastService.showToast({
+      variant: "error",
+      title,
+      message,
+    });
+  }
 }