flotilla/src/routes/chat/[chat]/+page.svelte

<script lang="ts">
  import {page} from "$app/stores"
  import type {MakeNonOptional} from '@welshman/lib'
  import Chat from "@app/components/Chat.svelte"
  import {notifications, setChecked} from "@app/util/notifications"

  const {chat} = $page.params as MakeNonOptional<typeof $page.params>

  // We have to watch this one, since on mobile the badge will be visible when active
  $effect(() => {
    if ($notifications.has($page.url.pathname)) {
      setChecked($page.url.pathname)
    }
  })
</script>

<Chat id={chat} />