allow someone to hide metadata / doctor events like window is visible #44160
Description
Feature request
https://posthog.com/questions/sess-rep-event-select-custom-properties-to-display-on-right-ribbon
the metadata events we show in the activity inspector cannot be hidden using mini filters
but not everyone will want to always see them
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]