feat: implement hx-boost for reliable loading indication

templates/base.html.twig

@@ -11,7 +11,7 @@
             {{ encore_entry_script_tags('app') }}
         {% endblock %}
     </head>
-    <body class="bg-white text-gray-700 font-sans antialiased">
+    <body class="bg-white text-gray-700 font-sans antialiased" hx-boost="true">
         {% block body %}{% endblock %}
     </body>
 </html>