Add OG properties to shared wheel page

Author: gomander

src/routes/[path=path]/+page.svelte

@@ -29,6 +29,12 @@
 
 <svelte:head>
   <title>{data.wheel.config.title} - Svelte Wheel</title>
+  <meta property="og:title" content={data.wheel.config.title} />
+  <meta property="og:description" content={data.wheel.config.description} />
+  <meta
+    property="og:image"
+    content="https://sveltewheel.com/thumbnails/{data.wheel.path}"
+  />
 </svelte:head>
 
 <div class="min-h-screen flex flex-col">