ALF lists screen (#8941)

* alf list screens

* relocate to `#/screens`, balkanize

* use useBreakpoints

* showCancel on subscribe menu

* fix typo

src/view/com/util/LoadingScreen.tsx

@@ -1,17 +0,0 @@
-import {ActivityIndicator, View} from 'react-native'
-
-import {s} from '#/lib/styles'
-import * as Layout from '#/components/Layout'
-
-/**
- * @deprecated use Layout compoenents directly
- */
-export function LoadingScreen() {
-  return (
-    <Layout.Content>
-      <View style={s.p20}>
-        <ActivityIndicator size="large" />
-      </View>
-    </Layout.Content>
-  )
-}