Update preview images

src/components/layout/PageThumbnail.svelte

@@ -0,0 +1,8 @@
+<script>
+	let { thumbnail = '' } = $props();
+</script>
+
+<svelte:head>
+	<meta property="og:image" content={thumbnail} />
+	<meta property="twitter:image" content={thumbnail} />
+</svelte:head>

src/components/layout/SeoMetaTags.svelte

@@ -4,9 +4,6 @@
 		description = 'Meet the student council, get access to academic and technical resources, registration for events, and much more!',
 		canonical = 'https://ecsess.mcgilleus.ca'
 	} = $props();
-
-	let thumbnail =
-		'https://cdn.sanity.io/images/vmtsvpe2/production/5d68504038cc692805dc5e51af83adedfefde442-5304x3443.jpg?h=628&fm=webp';
 </script>
 
 <svelte:head>
@@ -22,12 +19,10 @@
 	<meta property="og:url" content={canonical} />
 	<meta property="og:title" content={title} />
 	<meta property="og:description" content={description} />
-	<meta property="og:image" content={thumbnail} />
 
 	<!-- X (Twitter) -->
 	<meta property="twitter:card" content="summary_large_image" />
 	<meta property="twitter:url" content={canonical} />
 	<meta property="twitter:title" content={title} />
 	<meta property="twitter:description" content={description} />
-	<meta property="twitter:image" content={thumbnail} />
 </svelte:head>