feat: 🎸 Add managed groups create CRUD operation

ui/admin/tests/unit/routes/scopes/scope/auth-methods/auth-method/managed-groups/new-test.js

@@ -0,0 +1,16 @@
+import { module, test } from 'qunit';
+import { setupTest } from 'ember-qunit';
+
+module(
+  'Unit | Route | scopes/scope/auth-methods/auth-method/managed-groups/new',
+  function (hooks) {
+    setupTest(hooks);
+
+    test('it exists', function (assert) {
+      let route = this.owner.lookup(
+        'route:scopes/scope/auth-methods/auth-method/managed-groups/new'
+      );
+      assert.ok(route);
+    });
+  }
+);