Attempt to fix parentNode null

In some scenarios a null error can occur (see below) - think it may be this issue and resolution: sveltejs/svelte#6037 (comment)

index.mjs:199 Uncaught (in promise) TypeError: Cannot read properties of null (reading 'removeChild')
    at v (index.mjs:199:21)
    at Object.d (ChannelElement.svelte:47:58)
    at Object.d (ChannelElement.svelte:46:9)
    at index.mjs:812:27
    at n (index.mjs:18:12)
    at Array.forEach (<anonymous>)
    at i (index.mjs:24:9)
    at nt (index.mjs:793:9)
    at Object.p (ChannelElement.svelte:40:47)
    at X (index.mjs:764:36)

src/ChannelElement.svelte

@@ -44,7 +44,9 @@
   <div class="shows" tabindex="0">
     {#if shows?.length}
       {#each shows as show (show.id + show.start)}
-        <ShowElement {channel} {show} lastShow={show === lastShow} />
+        <div>
+          <ShowElement {channel} {show} lastShow={show === lastShow} />
+        </div>
       {/each}
     {:else}
       <p>(Ingen programmer at vise)</p>