if lab structured as a pdf detected, display as talk

src/routes/(course-reader)/lab/[courseid]/[...loid]/+page.svelte

@@ -1,7 +1,15 @@
 <script lang="ts">
   import type { PageData } from "./$types";
   import Lab from "$lib/ui/learning-objects/content/Lab.svelte";
+  import Context from "$lib/ui/learning-objects/structure/Context.svelte";
+  import Talk from "$lib/ui/learning-objects/content/Talk.svelte";
   export let data: PageData;
 </script>
 
-<Lab lab={data.lab} />
+{#if data.lab.lab.pdf}
+  <Context lo={data.lab.lab}>
+    <Talk lo={data.lab.lab} />
+  </Context>
+{:else}
+  <Lab lab={data.lab} />
+{/if}