The ability to add more than 10 steps to the funnel insight

[RCVZ]

Feature request

Is your feature request related to a problem?

See https://github.com/PostHog/posthog/issues/22999

Describe the solution you'd like

Describe alternatives you've considered

Drop the use of Posthog and use a platform that supports this

Additional context

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]