Fix squirrely notification badges

src/app/components/PrimaryNavItemSpace.svelte

@@ -3,18 +3,17 @@
   import PrimaryNavItem from "@lib/components/PrimaryNavItem.svelte"
   import SpaceAvatar from "@app/components/SpaceAvatar.svelte"
   import {makeSpacePath} from "@app/routes"
-  import {deriveNotification, SPACE_FILTERS} from "@app/notifications"
+  import {spacesNotifications} from "@app/notifications"
 
   export let url
 
   const path = makeSpacePath(url)
-  const notification = deriveNotification(path, SPACE_FILTERS, url)
 </script>
 
 <PrimaryNavItem
   title={displayRelayUrl(url)}
   href={path}
   class="tooltip-right"
-  notification={$notification}>
+  notification={$spacesNotifications.includes(path)}>
   <SpaceAvatar {url} />
 </PrimaryNavItem>