fix: make debug optional based on the environment

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

frontend/src/lib/mixpanelLib.ts

@@ -9,7 +9,7 @@ let isInitialized = false;
 
 const initMixpanel = async () => {
   if (typeof window !== "undefined" && MIXPANEL_TOKEN && !isInitialized) {
-    mixpanel.init(MIXPANEL_TOKEN, { debug: true });
+    mixpanel.init(MIXPANEL_TOKEN, { debug: process.env.NODE_ENV === 'development' });
 
     const user = await GetUserData();