add logging with loglevel

src/lib/MetaPixel.svelte

@@ -39,18 +39,21 @@
 				loadMetaPixel(); // Load the Meta Pixel script
 			}
 			this._baseLoaded = true;
+			log.debug('Meta Pixel base script loaded.');
 		}
 
 		/** Tells the Meta pixel that the user has given consent for tracking. */
 		static grantConsent() {
 			this.loadGuard();
 			window.fbq?.('consent', 'grant');
+			log.debug('Meta Pixel consent granted.');
 		}
 
 		/** Tells the Meta pixel that the user has revoked consent for tracking. */
 		static revokeConsent() {
 			this.loadGuard();
 			window.fbq?.('consent', 'revoke');
+			log.debug('Meta Pixel consent revoked.');
 		}
 
 		/**
@@ -89,6 +92,7 @@
 		fireInit(advancedMatching?: AdvancedMatching, initOptions?: InitOptions): PixelControl {
 			PixelControl.loadGuard();
 			window.fbq('init', this._pixelID, advancedMatching, initOptions);
+			log.debug(`Meta Pixel [${this._pixelID}] initialized.`);
 			return this;
 		}
 
@@ -111,6 +115,9 @@
 		pageView() {
 			if (!this.consentGuard()) return;
 			window.fbq('track', 'PageView', undefined, { test_event_code: this._testEventCode });
+			log.debug(
+				`Meta Pixel [${this._pixelID}] PageView event sent (test code: ${this._testEventCode}).`
+			);
 		}
 
 		/**
@@ -123,6 +130,9 @@
 				eventID,
 				test_event_code: this._testEventCode
 			});
+			log.debug(
+				`Meta Pixel [${this._pixelID}] ${event} event sent (test code: ${this._testEventCode}).`
+			);
 		}
 
 		/**
@@ -135,6 +145,9 @@
 				eventID,
 				test_event_code: this._testEventCode
 			});
+			log.debug(
+				`Meta Pixel [${this._pixelID}] ${event} custom event sent (test code: ${this._testEventCode}).`
+			);
 		}
 	}
 </script>
@@ -154,6 +167,7 @@
 	import { loadMetaPixel } from './util/meta-pixel-loader.ts';
 	import { onNavigate } from '$app/navigation';
 	import { resolveGetter, type MaybeGetter } from './util/getter.ts';
+	import log from 'loglevel';
 
 	interface Props {
 		/** Meta Pixel ID */