fix(core): update

ts/index.ts

@@ -7,6 +7,9 @@ export { customElement } from 'lit/decorators/custom-element.js';
 
 export { property, state, query, queryAll, queryAsync } from 'lit/decorators.js';
 
+export { until } from 'lit/directives/until.js';
+export { asyncAppend } from 'lit/directives/async-append.js';
+
 // domtools exports
 import * as domtools from '@designestate/dees-domtools';
 export { domtools };