feat: add page system behing navbar items and skeletons for loading

crates/app/templates/layout/nav/desktop/menu-items.html

@@ -5,5 +5,5 @@
   hx-trigger="load"
   hx-swap="outerHTML"
 >
-  Chargement ...
+  {% include "skeletons/menu-items.html" %}
 </div>

crates/app/templates/layout/nav/nav-menu-items.html

@@ -1,6 +1,10 @@
 {% for item in items %}
   <a
-    href="#{{ item.id }}"
+    href=""
+    hx-get="{{ item.href }}"
+    hx-trigger="click"
+    hx-target="#main-container"
+    hx-swap="innerHTML"
     class="{{ Self::get_classes(self, item.current) }}"
     aria-current="{% if item.current %}page{% endif %}"
   >