Duplicate survey through projects/environments

[marandaneto]

Feature request

Is your feature request related to a problem?

Today you can only duplicate a survey within a project

Describe the solution you'd like

You can duplicate surveys through projects/environments

Describe alternatives you've considered

No alternative right now

Additional context

You can do this with feature flags (feature flag copy) feature

https://posthog.slack.com/archives/C07QD3LT8U9/p1740397477435229

Debug info

- [ ] PostHog Cloud, Debug information: [please copy/paste from https://us.posthog.com/settings/project-details#variables]
- [ ] PostHog Hobby self-hosted with `docker compose`, version/commit: [please provide]
- [ ] PostHog self-hosted with Kubernetes (deprecated, see [`Sunsetting Kubernetes support`](https://posthog.com/blog/sunsetting-helm-support-posthog)), version/commit: [please provide]