Resolve "Adapt for SPA operation"

Closes #11 (closed)

aleksis/apps/stoelindeling/menus.py

-from django.utils.translation import gettext_lazy as _
-
-MENUS = {
-    "NAV_MENU_CORE": [
-        {
-            "name": _("Seating plans"),
-            "url": "seating_plans",
-            "svg_icon": "mdi:view-list-outline",
-            "validators": [
-                (
-                    "aleksis.core.util.predicates.permission_validator",
-                    "stoelindeling.view_seatingplans_rule",
-                ),
-            ],
-        },
-    ]
-}