admin toc: label rename + padding

- rename 'Sur cette page' to 'Parties'
- add padding-top between PARTIES label and toc links

app/public/assets/css/admin.css

@@ -2240,6 +2240,10 @@ th.admin-ap-col {
 }
 
 /* Admin TOC: same <details class="toc"> as public pages, positioned sticky */
+#admin-toc .toc-list {
+  padding-top: var(--space-2xs);
+}
+
 #admin-toc .toc-list a {
   font-size: var(--step--1);
 }

app/templates/admin/partials/admin-toc.php

@@ -7,8 +7,8 @@
  * at runtime.
  */
 ?>
-<details class="toc" id="admin-toc" open aria-label="Sur cette page">
-    <summary><?= icon('caret-down', 0, 'toc-caret') ?> SUR CETTE PAGE</summary>
+<details class="toc" id="admin-toc" open aria-label="Parties">
+    <summary><?= icon('caret-down', 0, 'toc-caret') ?> PARTIES</summary>
     <ul class="toc-list" id="admin-toc-list">
         <!-- populated by admin-toc.js -->
     </ul>