Work on swapping nav out depending on current page

src/app/routes.ts

@@ -0,0 +1,22 @@
+import type {Page} from '@sveltejs/kit'
+import {userGroupsByNom} from '@app/state'
+
+export const getPrimaryNavItem = ($page: Page) => {
+  if ($page.route?.id?.match('^/(spaces|themes)$')) return 'discover'
+  if ($page.route?.id?.startsWith('/spaces'))       return 'space'
+  if ($page.route?.id?.startsWith('/settings'))     return 'settings'
+  return 'home'
+}
+
+export const getPrimaryNavItemIndex = ($page: Page) => {
+  switch (getPrimaryNavItem($page)) {
+    case 'discover':
+      return userGroupsByNom.get().size + 2
+    case 'space':
+      return Array.from(userGroupsByNom.get().keys()).findIndex(nom => nom === $page.params.nom) + 1
+    case 'settings':
+      return userGroupsByNom.get().size + 3
+    default:
+      return 0
+  }
+}