chore: inject Vercel web analytics (#71)

Author: kevinobee

package-lock.json

@@ -64,6 +64,7 @@
 		"@types/eslint": "8.56.2",
 		"@typescript-eslint/eslint-plugin": "^7.0.0",
 		"@typescript-eslint/parser": "^6.0.0",
+		"@vercel/analytics": "^1.2.2",
 		"@vitest/coverage-v8": "^1.3.0",
 		"eslint": "^8.56.0",
 		"eslint-config-prettier": "^9.1.0",

package.json

@@ -1,5 +1,9 @@
 <script>
 	import '../styles/app.css';
+	import { dev } from '$app/environment';
+	import { inject } from '@vercel/analytics';
+
+	inject({ mode: dev ? 'development' : 'production' });
 
 	const title = 'sveltekit-security-headers';
 	const description = 'Add HTTP Security Response Headers to any SvelteKit application';