fix(core): update

ts/domtools.classes.domtools.ts

@@ -71,11 +71,15 @@ export class DomTools {
 
   constructor() {
     // lets care about third party stuff
-    this.domToolsReady.promise.then(() => {
+    document.addEventListener(
+      'DOMContentLoaded',
+      () => {
         const scroller = new plugins.sweetscroll({
           /* some options */
         });
-    });
+      },
+      false,
+    );
   }
 
   private runOnceTrackerStringMap = new Stringmap();