chore: enable Vercel speed insights on preview site (#625)

privacy-compliant way to track performance metrics on our sites

Author: dummdidumm

package.json

@@ -55,6 +55,7 @@
 		"@replit/codemirror-vim": "^6.0.14",
 		"@rich_harris/svelte-split-pane": "^1.1.3",
 		"@sveltejs/repl": "^0.6.0",
+		"@vercel/speed-insights": "^1.0.0",
 		"@webcontainer/api": "^1.1.5",
 		"adm-zip": "^0.5.10",
 		"ansi-to-html": "^0.7.2",
@@ -69,4 +70,4 @@
 		"yootils": "^0.3.1"
 	},
 	"packageManager": "[email protected]"
-}
+}

pnpm-lock.yaml

@@ -5,9 +5,12 @@
 	import { Icon, Shell } from '@sveltejs/site-kit/components';
 	import { Nav, Separator } from '@sveltejs/site-kit/nav';
 	import { Search, SearchBox } from '@sveltejs/site-kit/search';
+	import { injectSpeedInsights } from '@vercel/speed-insights/sveltekit';
 	import '@sveltejs/site-kit/styles/index.css';
 	import '../app.css';
 
+	injectSpeedInsights();
+
 	export let data;
 </script>