fix: mapping of user was done each time component was initialised (#3573)

lnbits/templates/macros.jinja

@@ -1,18 +1,8 @@
-{% macro window_vars(user, wallet, extensions, extension_data) -%}
+{% macro window_vars(user) -%}
   <script id="window-vars-script">
-    window.extensions = JSON.parse('{{ EXTENSIONS | tojson | safe }}');
-    {% if extension_data %}
-      window.extension_data = {{ extension_data | tojson | safe }};
-    {% endif %}
-    {% if currencies %}
-      window.currencies = {{ currencies | tojson | safe }};
-    {% endif %}
     {% if user %}
       window.user = JSON.parse({{ user | tojson | safe }});
     {% endif %}
-    {% if wallet %}
-      window.wallet = JSON.parse({{ wallet | tojson | safe }});
-    {% endif %}
   </script>
   <script>
   //Needed for Vue to create the app on first load (although called on every page, its only loaded once)