Rework profile page to include working view selector

src/view/com/posts/Feed.tsx

@@ -0,0 +1,43 @@
+import React from 'react'
+import {observer} from 'mobx-react-lite'
+import {Text, View, FlatList} from 'react-native'
+import {FeedViewModel, FeedViewItemModel} from '../../../state/models/feed-view'
+import {FeedItem} from './FeedItem'
+import {useStores} from '../../../state'
+
+export const Feed = observer(function Feed({feed}: {feed: FeedViewModel}) {
+  const store = useStores()
+
+  // TODO optimize renderItem or FeedItem, we're getting this notice from RN: -prf
+  //   VirtualizedList: You have a large list that is slow to update - make sure your
+  //   renderItem function renders components that follow React performance best practices
+  //   like PureComponent, shouldComponentUpdate, etc
+  const renderItem = ({item}: {item: FeedViewItemModel}) => (
+    <FeedItem item={item} />
+  )
+  const onRefresh = () => {
+    feed.refresh().catch(err => console.error('Failed to refresh', err))
+  }
+  const onEndReached = () => {
+    feed.loadMore().catch(err => console.error('Failed to load more', err))
+  }
+  return (
+    <View>
+      {feed.isLoading && !feed.isRefreshing && !feed.hasContent && (
+        <Text>Loading...</Text>
+      )}
+      {feed.hasError && <Text>{feed.error}</Text>}
+      {feed.hasContent && (
+        <FlatList
+          data={feed.feed.slice()}
+          keyExtractor={item => item._reactKey}
+          renderItem={renderItem}
+          refreshing={feed.isRefreshing}
+          onRefresh={onRefresh}
+          onEndReached={onEndReached}
+        />
+      )}
+      {feed.isEmpty && <Text>This feed is empty!</Text>}
+    </View>
+  )
+})