updateForm method
Updates an existing form.
Makes a PUT /form/:formId request.
formId is the unique ID of the form to update.
form is the FormModel with updated data.
Returns the updated FormModel.
Throws DioException on failure.
Implementation
Future<FormModel> updateForm(String formId, FormModel form) async {
final response = await client.dio.put('/form/$formId', data: form.toJson());
return FormModel.fromJson(response.data as Map<String, dynamic>);
}