fix: correct domain to annotation.garden/hedit, embed logo in SVG

Author: neuromechanist

frontend/assets/og-image-dark.png

@@ -8,14 +8,14 @@
     <meta property="og:title" content="HEDit" />
     <meta property="og:description" content="From plain English or images to valid HED annotations, automatically." />
     <meta property="og:type" content="website" />
-    <meta property="og:url" content="https://hedit.pages.dev" />
-    <meta property="og:image" content="https://hedit.pages.dev/assets/og-image.png" />
+    <meta property="og:url" content="https://annotation.garden/hedit" />
+    <meta property="og:image" content="https://annotation.garden/hedit/assets/og-image.png" />
     <meta property="og:image:width" content="1200" />
     <meta property="og:image:height" content="630" />
     <meta name="twitter:card" content="summary_large_image" />
     <meta name="twitter:title" content="HEDit" />
     <meta name="twitter:description" content="From plain English or images to valid HED annotations, automatically." />
-    <meta name="twitter:image" content="https://hedit.pages.dev/assets/og-image.png" />
+    <meta name="twitter:image" content="https://annotation.garden/hedit/assets/og-image.png" />
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet">