[APP-1782] Analytics migration (#9734)

* WIP

* Clean up growthbook code, integrate into init and sessions

* Move everything out of React

* Add metrics client

* Move to separate file

* Shared metadata cache

* Ensure we update metadata when session ID changes

* Ensure userMetadata is cleared when logging out

* WIP revamp

* Integrate feature gates into analytics context

* Clean up old code

* Fix useMeta util

* Some comments and cleanup

* Add logger to base analytics context

* Refactor current route handling

* Rip out LogEvent from navigation

* Update tracking endpoint

* Migrate toClout

* Clear out statsig client

* Add todo, reset logger readme

* Ope fix statsig noop

* Refactor logging in feed-feedback, add debug logging to metrics client

* Remove LogEvents alias for Metrics

* Prefer root package export

* Remove Metrics alias from logger

* [APP-1782] Migrate to new analytics APIs (#9735)

* Migrate logEvent to useAnalytics

* Migrate logger.metric to useAnalytics

* Migrate tricky spot, fix types

* Migrate remaining tricky spot

* Missed one

* Remove metric() from logger

* Migrate useGate to useAnalytics

* Remove all other StatSig mentions

* Update event payload

* Update logger tests

* Mock expo method

* Fix session ID bug

* Add session ID test

* Add test for metrics client

* Clarify intent

* Clean up core analytics file

* Clean up the call once utils

* Fix TODO

* Fix TODO

* Fix TODO

* Fix TODO

* Fix TODO

* Remove debug code

* Fix navigation context

* OK nav context is not working, todo

* Checkpoint: works but feels hacky

* Fix navigation context issue

* Improve feature API

* Improve metric logging

* Update logger tests

src/screens/Onboarding/index.tsx

@@ -3,7 +3,6 @@ import {View} from 'react-native'
 import * as bcp47Match from 'bcp-47-match'
 
 import {useEnableKeyboardControllerScreen} from '#/lib/hooks/useEnableKeyboardController'
-import {useGate} from '#/lib/statsig/statsig'
 import {useLanguagePrefs} from '#/state/preferences'
 import {
   Layout,
@@ -23,6 +22,7 @@ import {useIsFindContactsFeatureEnabledBasedOnGeolocation} from '#/components/co
 import {useFindContactsFlowState} from '#/components/contacts/state'
 import {Portal} from '#/components/Portal'
 import {ScreenTransition} from '#/components/ScreenTransition'
+import {useAnalytics} from '#/analytics'
 import {ENV, IS_NATIVE} from '#/env'
 import {StepFindContacts} from './StepFindContacts'
 import {StepFindContactsIntro} from './StepFindContactsIntro'
@@ -31,7 +31,7 @@ import {StepSuggestedStarterpacks} from './StepSuggestedStarterpacks'
 
 export function Onboarding() {
   const t = useTheme()
-  const gate = useGate()
+  const ax = useAnalytics()
 
   const {contentLanguages} = useLanguagePrefs()
   const probablySpeaksEnglish = useMemo(() => {
@@ -48,7 +48,7 @@ export function Onboarding() {
     ENV !== 'e2e' &&
     IS_NATIVE &&
     findContactsEnabled &&
-    !gate('disable_onboarding_find_contacts')
+    !ax.features.enabled(ax.features.DisableOnboardingFindContacts)
 
   const [state, dispatch] = useReducer(
     reducer,