feat(apple): Add experimental features to feature list (#4938)

Author: philipphofmann

src/includes/getting-started-primer/apple.mdx

@@ -26,5 +26,7 @@
   - [Mobile Vitals](https://docs.sentry.io/product/performance/mobile-vitals/)
     - Cold and warm start
     - Slow and frozen frames
+  - Performance of file I/O operations (experimental)
+  - Performance of Core Data queries (experimental)
 - [Attachments](/platforms/apple/enriching-events/attachments/) enrich your event by storing additional files, such as config or log files
 - [User Feedback](/platforms/apple/enriching-events/user-feedback/) provides the ability to collect user information when an event occurs