New onboarding (#241)

* delete old onboarding files and code

* add custom FollowButton component to Post, FeedItem, & ProfileCard

* move building suggested feed into helper lib

* show suggested posts/feed if follower list is empty

* Update tsconfig.json

* add pagination to getting new onboarding

* remove unnecessary console log

* fix naming, add better null check for combinedCursor

* In locally-combined feeds, correctly produce an undefined cursor when out of data

* Minor refactors of the suggested posts lib functions

* Show 'follow button' style of post meta in certain conditions only

* Only show follow btn in posts on the main feed and the discovery feed

* Add a welcome notice to the home feed

* Tune the timing of when the welcome banner shows or hides

* Make the follow button an observer (closes #244)

* Update postmeta to keep the follow btn after press until next render

* A couple of fixes that ensure consistent welcome screen

* Fix lint

* Rework the welcome banner

* Fix cache invalidation of follows model on user switch

* Show welcome banner while loading

* Update the home onboarding feed to get top posts from hardcode recommends

* Drop unused helper function

* Update happy path tests

---------

Co-authored-by: Paul Frazee <pfrazee@gmail.com>

src/view/shell/web/index.tsx

@@ -6,7 +6,6 @@ import {useStores} from 'state/index'
 import {NavigationModel} from 'state/models/navigation'
 import {match, MatchResult} from '../../routes'
 import {DesktopHeader} from './DesktopHeader'
-import {Onboard} from '../../screens/Onboard'
 import {Login} from '../../screens/Login'
 import {ErrorBoundary} from '../../com/util/ErrorBoundary'
 import {Lightbox} from '../../com/lightbox/Lightbox'
@@ -35,15 +34,6 @@ export const WebShell: React.FC = observer(() => {
       </View>
     )
   }
-  if (store.onboard.isOnboarding) {
-    return (
-      <View style={styles.outerContainer}>
-        <ErrorBoundary>
-          <Onboard />
-        </ErrorBoundary>
-      </View>
-    )
-  }
 
   return (
     <View style={[styles.outerContainer, pageBg]}>