Add custom feeds selector, rework search, simplify onboarding (#325)

* Get home screen's swipable pager working with the drawer

* Add tab bar to pager

* Implement popular & following views on home screen

* Visual tune-up

* Move the feed selector to the footer

* Fix to 'new posts' poll

* Add the view header as a feed item

* Use the native driver on the tabbar indicator to improve perf

* Reduce home polling to the currently active page; also reuse some code

* Add soft reset on tap selected in tab bar

* Remove explicit 'onboarding' flow

* Choose good stuff based on service

* Add foaf-based follow discovery

* Fall back to who to follow

* Fix backgrounds

* Switch to the off-spec goodstuff route

* 1.8

* Fix for dev & staging

* Swap the tab bar items and rename suggested to what's hot

* Go to whats-hot by default if you have no follows

* Implement pager and tabbar for desktop web

* Pin deps to make expo happy

* Add language filtering to goodstuff

1 files changed, 17 insertions, 5 deletions

diff --git a/src/view/shell/BottomBar.tsx b/src/view/shell/BottomBar.tsx
index c59d8c675..1cbf2de86 100644
--- a/src/view/shell/BottomBar.tsx
+++ b/src/view/shell/BottomBar.tsx
@@ -34,16 +34,24 @@ export const BottomBar = observer(({navigation}: BottomTabBarProps) => {
   const minimalShellInterp = useAnimatedValue(0)
   const safeAreaInsets = useSafeAreaInsets()
   const {track} = useAnalytics()
-  const {isAtHome, isAtSearch, isAtNotifications} = useNavigationState(
-    state => {
-      return {
+  const {isAtHome, isAtSearch, isAtNotifications, noBorder} =
+    useNavigationState(state => {
+      const res = {
         isAtHome: getTabState(state, 'Home') !== TabState.Outside,
         isAtSearch: getTabState(state, 'Search') !== TabState.Outside,
         isAtNotifications:
           getTabState(state, 'Notifications') !== TabState.Outside,
+        noBorder: getTabState(state, 'Home') === TabState.InsideAtRoot,
       }
-    },
-  )
+      if (!res.isAtHome && !res.isAtNotifications && !res.isAtSearch) {
+        // HACK for some reason useNavigationState will give us pre-hydration results
+        //      and not update after, so we force isAtHome if all came back false
+        //      -prf
+        res.isAtHome = true
+        res.noBorder = true
+      }
+      return res
+    })
 
   React.useEffect(() => {
     if (store.shell.minimalShellMode) {
@@ -99,6 +107,7 @@ export const BottomBar = observer(({navigation}: BottomTabBarProps) => {
     <Animated.View
       style={[
         styles.bottomBar,
+        noBorder && styles.noBorder,
         pal.view,
         pal.border,
         {paddingBottom: clamp(safeAreaInsets.bottom, 15, 30)},
@@ -213,6 +222,9 @@ const styles = StyleSheet.create({
     paddingLeft: 5,
     paddingRight: 10,
   },
+  noBorder: {
+    borderTopWidth: 0,
+  },
   ctrl: {
     flex: 1,
     paddingTop: 13,