add logging with loglevel

src/lib/index.ts

@@ -1,7 +1,14 @@
 // Reexport your entry components here
 
-export * as fbq from './types/fbq.js';
+import { dev } from '$app/environment';
+import log from 'loglevel';
+
 export type * as fbq from './types/fbq.d.ts';
 export { default as MetaPixel, PixelControl } from './MetaPixel.svelte';
 export * from './tracking.svelte.ts';
 export { default as Umami } from './Umami.svelte';
+
+// set log level to debug if we're in dev mode
+if (dev) {
+	log.setLevel('debug');
+}