Next iOS major version plan

Codable support
Remove deprecated fields
Completion handler support
Migrate to Swift 6 (and strong concurrency?)
setup method should take the projectToken and not the PostHogConfig
async/await instead of callbacks
strongly typed PostHogEvent.properties for known values but still accepts any key/value?
breakdown session replay and error tracking in modules to reduce binary size due to libp and plcrashreporter and also naming clashes
Remove fields eg properties.build in favor of only properties.$app_build, maybe there are more similar to this one
Remove session replay wireframe mode?
Simplify config file (eg sessionReplay should be part of PostHogSessionReplayConfig)
Remove internal fields that are public
Config should be nullable and prefer remote config if not set (eg sessionReplay = false (false), sessionReplay = true && remote config is true (true), sessionReplay = nil && remote config is true (true), this matches the JS SDK)
Prob a bunch of ideas from this
Remove old queues and migrations from storage
Feat flag callback should be called if the API has an error as well, so the callback interface has to change
Migrate all test to Swift Testing
break up SDK in packages eg replay, error tracking, etc