fix: forgotten Vue inits (#2708)

lnbits/core/templates/core/first_install.html

@@ -97,9 +97,9 @@
   }
 </style>
 <script>
-  new Vue({
+  window.app = Vue.createApp({
     el: '#vue',
-    mixins: [windowMixin],
+    mixins: [window.windowMixin],
     data: function () {
       return {
         loginData: {

lnbits/core/templates/node/index.html

@@ -47,7 +47,7 @@
   Vue.component(VueQrcode.name, VueQrcode)
   Vue.use(VueQrcodeReader)
 
-  new Vue({
+  window.app = Vue.createApp({
     el: '#vue',
     config: {
       globalProperties: {
@@ -55,7 +55,7 @@
         msg: 'hello'
       }
     },
-    mixins: [windowMixin],
+    mixins: [window.windowMixin],
     data: function () {
       return {
         isSuperUser: false,

lnbits/core/templates/node/public.html

@@ -53,10 +53,7 @@ context %} {% block page %}
 {% endblock %} {% block scripts %} {{ window_vars(user) }}
 <script src="{{ static_url_for('static', 'js/node.js') }}"></script>
 <script>
-  Vue.component(VueQrcode.name, VueQrcode)
-  Vue.use(VueQrcodeReader)
-
-  new Vue({
+  window.app = Vue.createApp({
     el: '#vue',
     config: {
       globalProperties: {
@@ -64,7 +61,7 @@ context %} {% block page %}
         msg: 'hello'
       }
     },
-    mixins: [windowMixin],
+    mixins: [window.windowMixin],
     data: function () {
       return {
         isSuperUser: false,