fix(core): update

ts/index.ts

@@ -11,6 +11,11 @@ export {
   state
 } from 'lit-element';
 
+import * as domtools from '@designestate/dees-domtools';
+export {
+  domtools
+}
+
 export { DeesElement } from './dees-element.classes.dees-element';
 
 export const cssManager = new CssManager();