Resolve "Veranstaltungshierarchie: Aktionen in der Contentbar funktionieren...

Resolve "Veranstaltungshierarchie: Aktionen in der Contentbar funktionieren nach Schließen des Dialogs nicht mehr"

Closes #3490

Merge request studip/studip!2928

resources/assets/javascripts/bootstrap/responsive-navigation.js

 import ResponsiveNavigation from '../../../vue/components/responsive/ResponsiveNavigation.vue';
 
-STUDIP.ready(() => {
+STUDIP.domReady(() => {
     STUDIP.Vue.load().then(({ createApp }) => {
         createApp({
             el: '#responsive-menu',

resources/assets/javascripts/bootstrap/treeview.js

 import StudipTree from '../../../vue/components/tree/StudipTree.vue'
 
 STUDIP.ready(() => {
-    document.querySelectorAll('[data-studip-tree]').forEach(element => {
+    document.querySelectorAll('[data-studip-tree]:not(.vueified)').forEach(element => {
+        element.classList.add('vueified');
         STUDIP.Vue.load().then(({ createApp }) => {
             createApp({
                 el: element,

resources/vue/components/responsive/ResponsiveNavigation.vue

@@ -563,18 +563,6 @@ export default {
             attributeFilter: ['class']
         });
 
-        // Check for closed dialog, re-mounting the Vue component.
-        this.dialogObserver = new MutationObserver(mutations => {
-            if (mutations[0].removedNodes.length > 0 &&
-                    mutations[0].removedNodes[0].classList.contains('ui-widget-overlay')) {
-                document.getElementById('responsive-menu').replaceChildren(this.$el);
-            }
-        });
-
-        this.dialogObserver.observe(document.body, {
-            childList: true
-        });
-
         this.globalOn('has-contentbar', value => {
             this.hasContentbar = value;
             if (value && this.isFullscreen) {