fix: Webhooks+Partages after Hidden Files — no extra </section>

- Extracted correct lines (2052-2098, skipping stray </section> from prev)
- All 13 sections verified present in order
- Webhooks/Partages have config-section help-section classes

frontend/index.html

@@ -1864,11 +1864,6 @@
                             </section>
 
                             <!-- Diagnostics -->
-                                </div>
-                            </section>
-
-                            <!-- Webhooks -->
-                            <section id="cfg-webhooks" class="config-section help-section">
                                 <h2>🔔 Webhooks</h2>
                                 <p class="config-description">
                                     Notifications HTTP vers des services
@@ -2096,6 +2091,11 @@
                                     <div class="config-diag-loading" data-i18n="common.loading">
                                         Chargement...
                                     </div>
+                                </div>
+                            </section>
+
+                            <!-- Webhooks -->
+                            <section id="cfg-webhooks" class="config-section help-section">
                 style="
                     max-width: 95vw;
                     width: 1000px;