fix(#1791): Disable plausible init when analytics url is empty

src/lib/util/stats.ts

@@ -5,20 +5,23 @@ import { env } from './env';
 export let plausible: ReturnType<typeof PlausibleInstance> | undefined;
 
 export const initAnalytics = async (): Promise<void> => {
-  if (browser && !plausible) {
+  if (!env.analyticsUrl || !browser || plausible) {
+    return;
+  }
+
   try {
     const { default: Plausible } = await import('plausible-tracker');
     plausible = Plausible({
       // All tracked stats are public and available at https://p.mermaid.live/mermaid.live
       apiHost: env.analyticsUrl,
       domain: env.domain,
-        hashMode: false
+      hashMode: false,
+      trackLocalhost: true
     });
   } catch (error) {
     console.log(error);
     console.info('Analytics blocked ;)');
   }
-  }
 };
 
 export const countLines = (code: string): number => {