fix: mobile menu links

layouts/partials/astro/mobile_menu.html

+{{/* 
+  Copyright (c) 2023 Eclipse Foundation, Inc.
+
+  This program and the accompanying materials are made available under the
+  terms of the Eclipse Public License v. 2.0 which is available at
+  http://www.eclipse.org/legal/epl-2.0.
+
+  Contributors:
+    Olivier Goulet <olivier.goulet@eclipse-foundation.org>
+
+  SPDX-License-Identifier: EPL-2.0
+*/}}
+
+{{ $main_menu := .Scratch.Get "main_menu" }}
+{{ $current_page := . }}
+
+<nav class="mobile-menu hidden" aria-expanded="false">
+    <ul>
+        {{ range (index .Site.Menus $main_menu) }}
+            {{ $menu_id := .Identifier | default (lower .Name) }}
+            {{ $target_menu := printf "%s-menu" $menu_id }}
+
+            <li class="mobile-menu-dropdown">
+              <a class="mobile-menu-item mobile-menu-dropdown-toggle" href="{{ .URL }}">
+                <span>{{ .Name }}</span>
+                </a>
+            </li>
+        {{ end }}
+    </ul>
+</nav>
+