refactor: extract ViewMoreCard from VideoCards component

Moved the 'View more' card logic into a separate ViewMoreCard component
for better separation of concerns and readability.

Updated imports to use named React hooks instead of React namespace. To
modernise this old component per the new guidelines.

src/components/interstitials/TrendingVideos.tsx

@@ -1,4 +1,4 @@
-import React, {useEffect} from 'react'
+import {useCallback, useEffect, useMemo} from 'react'
 import {ScrollView, View} from 'react-native'
 import {AppBskyEmbedVideo, AtUri} from '@atproto/api'
 import {msg, Trans} from '@lingui/macro'
@@ -55,7 +55,7 @@ export function TrendingVideos() {
   const {setTrendingVideoDisabled} = useTrendingSettingsApi()
   const trendingPrompt = Prompt.usePromptControl()
 
-  const onConfirmHide = React.useCallback(() => {
+  const onConfirmHide = useCallback(() => {
     setTrendingVideoDisabled(true)
     logEvent('trendingVideos:hide', {context: 'interstitial:discover'})
   }, [setTrendingVideoDisabled])
@@ -147,9 +147,7 @@ function VideoCards({
 }: {
   data: Exclude<ReturnType<typeof usePostFeedQuery>['data'], undefined>
 }) {
-  const t = useTheme()
-  const {_} = useLingui()
-  const items = React.useMemo(() => {
+  const items = useMemo(() => {
     return data.pages
       .flatMap(page => page.slices)
       .map(slice => slice.items[0])
@@ -157,10 +155,6 @@ function VideoCards({
       .filter(item => AppBskyEmbedVideo.isView(item.post.embed))
       .slice(0, 8)
   }, [data])
-  const href = React.useMemo(() => {
-    const urip = new AtUri(VIDEO_FEED_URI)
-    return makeCustomFeedLink(urip.host, urip.rkey, undefined, 'discover')
-  }, [])
 
   return (
     <>
@@ -183,6 +177,21 @@ function VideoCards({
         </View>
       ))}
 
+      <ViewMoreCard />
+    </>
+  )
+}
+
+function ViewMoreCard() {
+  const t = useTheme()
+  const {_} = useLingui()
+
+  const href = useMemo(() => {
+    const urip = new AtUri(VIDEO_FEED_URI)
+    return makeCustomFeedLink(urip.host, urip.rkey, undefined, 'discover')
+  }, [])
+
+  return (
     <View style={[{width: CARD_WIDTH * 2}]}>
       <Link
         to={href}
@@ -227,6 +236,5 @@ function VideoCards({
         )}
       </Link>
     </View>
-    </>
   )
 }