revamped left menus entirely to a new menu definition system

ui/menudefs.yaml

@@ -0,0 +1,31 @@
+#
+# Amsterdam Web Communities System
+# Copyright (c) 2025 Erbosoft Metaverse Design Solutions, All Rights Reserved
+# 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at https://mozilla.org/MPL/2.0/.
+#
+menudefs:
+  - id: "top"
+    title: "Front Page"
+    permSet: "user"
+    items:
+      - text: "Calendar"
+        link: "/TODO/calendar"
+        disabled: true
+      - text: "Chat"
+        link: "/TODO/chat"
+        disabled: true
+  - id: "fixed"
+    title: "About This Site"
+    permSet: "user"
+    items:
+      - text: "Documentation"
+        link: "/TODO/documentation"
+        disabled: true
+      - text: "About Amsterdam"
+        link: "/about"
+      - text: "System Administration"
+        link: "/TODO/sysadmin"
+        permission: "Global.SysAdminAccess"