do not show chat manager in admin dashboard if disabled

src/inc/routes/admin.mjs

@@ -1422,6 +1422,9 @@ const page = Math.max(1, parseInt(req.url.qs?.page) || 1);
 
   // Chat Manager
   router.get(/^\/admin\/chat\/?$/, lib.auth, async (req, res) => {
+    if (!cfg.websrv.enable_global_chat) {
+      return res.redirect("/admin");
+    }
     res.reply({
       body: tpl.render('admin/chat', {
         session: req.session,

views/admin.html

@@ -26,7 +26,9 @@
         <li><a href="/admin/about">About Page</a></li>
         <li><a href="/admin/rules">Rules Page</a></li>
         <li><a href="/admin/terms">ToS Page</a></li>
+        @if(enable_global_chat)
         <li><a href="/admin/chat">Global Chat Manager</a></li>
+        @endif
       </ul>
       <hr style="margin: 20px 0; border: 0; border-top: 1px solid rgba(255,255,255,0.1);">