Fix to extraneous home feed polling

src/view/com/util/PostEmbeds.tsx

@@ -1,5 +1,5 @@
 import React from 'react'
-import {Image, StyleSheet, StyleProp, View, ViewStyle} from 'react-native'
+import {StyleSheet, StyleProp, View, ViewStyle} from 'react-native'
 import {AppBskyEmbedImages, AppBskyEmbedExternal} from '@atproto/api'
 import LinearGradient from 'react-native-linear-gradient'
 import {Link} from '../util/Link'
@@ -10,7 +10,6 @@ import {ImagesLightbox} from '../../../state/models/shell-ui'
 import {useStores} from '../../../state'
 import {usePalette} from '../../lib/hooks/usePalette'
 import {gradients} from '../../lib/styles'
-import {DEF_AVATAR} from '../../lib/assets'
 
 type Embed =
   | AppBskyEmbedImages.Presented

src/view/screens/Home.tsx

@@ -47,11 +47,15 @@ export const Home = observer(function Home({
 
   useEffect(() => {
     const pollInterval = setInterval(() => doPoll(), 15e3)
+    const cleanup = () => {
+      clearInterval(pollInterval)
+    }
+
     if (!visible) {
       setWasVisible(false)
-      return
+      return cleanup
     } else if (wasVisible) {
-      return
+      return cleanup
     }
     setWasVisible(true)
 
@@ -62,9 +66,7 @@ export const Home = observer(function Home({
     } else {
       store.me.mainFeed.setup()
     }
-    return () => {
-      clearInterval(pollInterval)
-    }
+    return cleanup
   }, [visible, store, navIdx, doPoll, wasVisible])
 
   const onPressCompose = () => {