Add thread sort settings (#1475)

* Add thread sorting preferences

* UI tweaks

* Tweak settings

* Tune the copy

src/view/screens/PreferencesHomeFeed.tsx

@@ -66,7 +66,10 @@ export const PreferencesHomeFeed = observer(function PreferencesHomeFeedImpl({
       ]}>
       <ViewHeader title="Home Feed Preferences" showOnDesktop />
       <View
-        style={[styles.titleSection, isTabletOrDesktop && {paddingTop: 20}]}>
+        style={[
+          styles.titleSection,
+          isTabletOrDesktop && {paddingTop: 20, paddingBottom: 20},
+        ]}>
         <Text type="xl" style={[pal.textLight, styles.description]}>
           Fine-tune the content you see on your home screen.
         </Text>
@@ -175,7 +178,7 @@ export const PreferencesHomeFeed = observer(function PreferencesHomeFeedImpl({
         style={[
           styles.btnContainer,
           !isTabletOrDesktop && {borderTopWidth: 1, paddingHorizontal: 20},
-          pal.borderDark,
+          pal.border,
         ]}>
         <TouchableOpacity
           testID="confirmBtn"