Make new scene action button work

Author: Avaer Kazmer

app.html

@@ -3538,6 +3538,10 @@
       _selectTab(3);
     } else if (id === 'tab-4') {
       _selectTab(4);
+    } else if (id === 'action-new-scene') {
+      while (root.firstChild) {
+        root.removeChild(root.firstChild);
+      }
     } else if (href) {
       const xrIframe = document.createElement('xr-iframe');
       xrIframe.src = href;

interface.html

@@ -249,7 +249,7 @@ <h3>{{label}}</h3>
       {{/tab1}}
       {{#tab2}}
       <div class=actions>
-        <a id=action-new class=action>
+        <a id=action-new-scene class=action>
           <div class=border></div>
           <div class=icon>
             <i class="fal fa-sparkles"></i>