move onboarding to screens

src/lib/routes/types.ts

@@ -1,5 +1,6 @@
 import {NavigationState, PartialState} from '@react-navigation/native'
 import type {NativeStackNavigationProp} from '@react-navigation/native-stack'
+import {OnboardingScreenSteps} from 'state/models/discovery/onboarding'
 
 export type {NativeStackScreenProps} from '@react-navigation/native-stack'
 
@@ -29,6 +30,10 @@ export type CommonNavigatorParams = {
   CopyrightPolicy: undefined
   AppPasswords: undefined
   SavedFeeds: undefined
+} & OnboardingScreenParams
+
+export type OnboardingScreenParams = {
+  [K in keyof typeof OnboardingScreenSteps]: undefined
 }
 
 export type BottomTabNavigatorParams = CommonNavigatorParams & {