feat: Add version num to track card

src/lib/components/TrackCard.svelte

@@ -1,11 +1,12 @@
 <script lang="ts">
   export let title: string;
+  export let version: number;
   export let producerUsername: string;
 </script>
 
 <article>
   <hgroup>
-    <h2>{title}</h2>
+    <h2>{title} <sup>(v{version})</sup></h2>
     <h3>by {producerUsername}</h3>
   </hgroup>
 

src/routes/+page.svelte

@@ -15,7 +15,11 @@
   {/if}
 
   {#each data.tracks as track}
-    <TrackCard title={track.title} producerUsername={track.producer.username} />
+    <TrackCard
+      title={track.title}
+      version={track.version}
+      producerUsername={track.producer}
+    />
   {/each}
 {:else}
   Oh no.