Added Plausible Analytics (#2462)

Author: niktek

sites/skeleton.dev/src/app.html

@@ -4,7 +4,7 @@
 		<meta charset="utf-8" />
 
 		<!-- NOTE: SEO handled in root layout: /src/+layout.svelte -->
-
+		<script defer data-domain="skeleton.dev" src="https://analytics.plygrnd.org/js/script.js"></script>
 		<link rel="icon" href="%sveltekit.assets%/favicon.png" />
 		<meta name="viewport" content="width=device-width, initial-scale=1" />
 		%sveltekit.head%