🚚(helm) add posthog proxy

To contourn ads blocker, we add a proxy to the
posthog service. This way, we can access the
service from the same domain as the frontend.

CHANGELOG.md

@@ -12,6 +12,8 @@ and this project adheres to
 ## Added
 
 - github actions to managed Crowdin workflow
+- 📈Integrate Posthog #540
+
 
 ## Changed