add imports

src/utils/__tests__/LanguageSwitchButton.test.js

@@ -12,4 +12,9 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
- */
+ */
+
+import { expect, test, describe, vi, beforeEach } from 'vitest';
+import { mount } from '@vue/test-utils';
+import LanguageSwitchButton from '@/features/i18n/components/LanguageSwitchButton.vue';
+import { loadLanguage } from '@/i18n';