refacto: rename html and rs templates dirs to old_*

crates/app/old_templates/layout/nav/desktop/profile-dropdown.html

@@ -0,0 +1,22 @@
+<div
+  class="absolute right-0 z-10 mt-2 w-48 origin-top-right rounded-md bg-white py-1 shadow-lg ring-1 ring-black ring-opacity-5 focus:outline-none"
+  role="menu"
+  id="profile-dropdown"
+  aria-orientation="vertical"
+  aria-labelledby="user-menu-button"
+  tabindex="-1"
+  x-show="profileOpen"
+  x-on:click.outside="profileOpen = false"
+  x-cloak
+  x-transition
+>
+  <div
+    id="profile-menu-desktop"
+    hx-get="/profile/menu?mobile=false"
+    hx-target="this"
+    hx-trigger="load"
+    hx-swap="outerHTML"
+  >
+    Chargement ...
+  </div>
+</div>