Fire the post:view client event in more places, anywhere a post can be seen (#9467)

* Fire the post:view client event in more places

* Fix bad import

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Co-authored-by: Eric Bailey <git@esb.lol>

src/screens/Topic.tsx

@@ -8,6 +8,7 @@ import {type NativeStackScreenProps} from '@react-navigation/native-stack'
 
 import {HITSLOP_10} from '#/lib/constants'
 import {useInitialNumToRender} from '#/lib/hooks/useInitialNumToRender'
+import {usePostViewTracking} from '#/lib/hooks/usePostViewTracking'
 import {type CommonNavigatorParams} from '#/lib/routes/types'
 import {shareUrl} from '#/lib/sharing'
 import {cleanError} from '#/lib/strings/errors'
@@ -135,6 +136,7 @@ function TopicScreenTab({
   const {_} = useLingui()
   const initialNumToRender = useInitialNumToRender()
   const [isPTR, setIsPTR] = React.useState(false)
+  const trackPostView = usePostViewTracking('Topic')
 
   const {
     data,
@@ -186,6 +188,7 @@ function TopicScreenTab({
           onRefresh={onRefresh}
           onEndReached={onEndReached}
           onEndReachedThreshold={4}
+          onItemSeen={trackPostView}
           // @ts-ignore web only -prf
           desktopFixedHeight
           ListFooterComponent={