fix(core): update

ts_web/elements/document.ts

@@ -18,6 +18,7 @@ import { DePage } from './page.js';
 import { DeContentInvoice } from './contentinvoice.js';
 
 import * as shared from './shared/index.js';
+import { demoFunc } from './document.demo.js';
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -27,9 +28,7 @@ declare global {
 
 @customElement('dedocument-dedocument')
 export class DeDocument extends DeesElement {
-  public static demo = () => html`
-    <dedocument-dedocument .format="${'a4'}" .letterData=${shared.demoLetter}></dedocument-dedocument>
-  `;
+  public static demo = demoFunc;
 
   @property({
     type: String,
@@ -86,7 +85,7 @@ export class DeDocument extends DeesElement {
       }
 
       .betweenPagesSpacer {
-        height: 20px;
+        height: 16px;
       }
     `,
   ];
@@ -107,6 +106,10 @@ export class DeDocument extends DeesElement {
       }
     });
     resizeObserver.observe(this);
+    this.registerGarbageFunction(() => {
+      resizeObserver.disconnect();
+    })
+    
     if (this.letterDataUrl) {
       const response = await fetch(this.letterDataUrl);
       this.letterData = await response.json();