Fix talk higlight (#1277)

Fix for missing h2 anchor. 
This is fixing talk highlight when we click on "View in the schedule".

Co-authored-by: Ege Akman <me@egeakman.dev>

Author: nikoshell

src/components/schedule/session.astro

@@ -80,7 +80,7 @@ const hasFooter = true;
     codeId={session.code}
     title={session.title}
   />
-  <h2>
+  <h2 id=`session-${session.slug}`>
     {session.title}
   </h2>
 

src/pages/schedule.astro

@@ -26,7 +26,6 @@ const days = await getCollection("days");
       <ScheduleDay day={day} />
     ))
   }
-</Layout>
 <script>
 window.addEventListener('load', function() {
   function checkForAnchorAndHighlight() {
@@ -88,3 +87,4 @@ window.addEventListener('load', function() {
   window.addEventListener('hashchange', checkForAnchorAndHighlight);
 });
 </script>
+</Layout>