add favicon

cmd/ingestd/web/index.html

@@ -4,6 +4,11 @@
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <title>Weatherstation Console</title>
+    <link rel="icon" href="/favicon.svg" type="image/svg+xml">
+    <link rel="icon" href="/favicon-96x96.png" sizes="96x96" type="image/png">
+    <link rel="icon" href="/favicon.ico" sizes="any">
+    <link rel="apple-touch-icon" href="/apple-touch-icon.png">
+    <link rel="manifest" href="/site.webmanifest">
     <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=IBM+Plex+Mono:wght@400;600&family=Space+Grotesk:wght@400;600&display=swap" rel="stylesheet">