Extract shell state into separate context (#1824)

* WIP

* Add shell state

* Integrate new shell state for drawer and minimal shell mode

* Replace isDrawerSwipeDisabled

* Split shell state into separate contexts to avoid needless re-renders

* Fix typo

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

src/view/com/auth/Onboarding.tsx

@@ -8,14 +8,16 @@ import {useStores} from 'state/index'
 import {Welcome} from './onboarding/Welcome'
 import {RecommendedFeeds} from './onboarding/RecommendedFeeds'
 import {RecommendedFollows} from './onboarding/RecommendedFollows'
+import {useSetMinimalShellMode} from '#/state/shell/minimal-mode'
 
 export const Onboarding = observer(function OnboardingImpl() {
   const pal = usePalette('default')
   const store = useStores()
+  const setMinimalShellMode = useSetMinimalShellMode()
 
   React.useEffect(() => {
-    store.shell.setMinimalShellMode(true)
-  }, [store])
+    setMinimalShellMode(true)
+  }, [setMinimalShellMode])
 
   const next = () => store.onboarding.next()
   const skip = () => store.onboarding.skip()