[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/components/interstitials/Trending.tsx

@@ -3,7 +3,6 @@ import {ScrollView, View} from 'react-native'
 import {msg} from '@lingui/macro'
 import {useLingui} from '@lingui/react'
 
-import {logEvent} from '#/lib/statsig/statsig'
 import {
   useTrendingSettings,
   useTrendingSettingsApi,
@@ -19,6 +18,7 @@ import {Trending2_Stroke2_Corner2_Rounded as Graph} from '#/components/icons/Tre
 import * as Prompt from '#/components/Prompt'
 import {TrendingTopicLink} from '#/components/TrendingTopics'
 import {Text} from '#/components/Typography'
+import {useAnalytics} from '#/analytics'
 
 export function TrendingInterstitial() {
   const {enabled} = useTrendingConfig()
@@ -29,6 +29,7 @@ export function TrendingInterstitial() {
 export function Inner() {
   const t = useTheme()
   const {_} = useLingui()
+  const ax = useAnalytics()
   const gutters = useGutters([0, 'base', 0, 'base'])
   const trendingPrompt = Prompt.usePromptControl()
   const {setTrendingDisabled} = useTrendingSettingsApi()
@@ -36,9 +37,9 @@ export function Inner() {
   const noTopics = !isLoading && !error && !trending?.topics?.length
 
   const onConfirmHide = React.useCallback(() => {
-    logEvent('trendingTopics:hide', {context: 'interstitial'})
+    ax.metric('trendingTopics:hide', {context: 'interstitial'})
     setTrendingDisabled(true)
-  }, [setTrendingDisabled])
+  }, [ax, setTrendingDisabled])
 
   return error || noTopics ? null : (
     <View style={[t.atoms.border_contrast_low, a.border_t, a.border_b]}>
@@ -94,7 +95,9 @@ export function Inner() {
                     key={topic.link}
                     topic={topic}
                     onPress={() => {
-                      logEvent('trendingTopic:click', {context: 'interstitial'})
+                      ax.metric('trendingTopic:click', {
+                        context: 'interstitial',
+                      })
                     }}>
                     <View style={[a.py_lg]}>
                       <Text