fix(core): update

ts_web/elements/dees-input-checkbox.ts

@@ -9,7 +9,11 @@ declare global {
 
 @customElement('dees-input-checkbox')
 export class DeesInputCheckbox extends DeesElement {
+  // STATIC
   public static demo = () => html`<dees-input-checkbox></dees-input-checkbox>`;
+  
+  // INSTANCE
+  public changeSubject = new domtools.rxjs.Subject();
 
   @property()
   public key: string;
@@ -20,6 +24,7 @@ export class DeesInputCheckbox extends DeesElement {
   @property()
   public value: boolean = false;
 
+
   public render(): TemplateResult {
     return html`
       ${domtools.elementBasic.styles}
@@ -129,5 +134,6 @@ export class DeesInputCheckbox extends DeesElement {
         bubbles: true,
       })
     );
+    this.changeSubject.next(this);
   }
 }