chore: release 4.0.6

As mentioned in https://reactnavigation.org/docs/en/switch-actions.html
the param which's name is 'key' of `SwitchActions.jumpTo()`  should be optional

example/README.md

@@ -0,0 +1,12 @@
+# Navigation Playground Example
+
+The NavigationPlayground example app includes a variety of patterns and is used as a simple way for contributors to manually integration test changes.
+
+## Usage
+
+```bash
+yarn bootstrap # in the react-navigation root directory
+yarn example start
+```
+
+You can view this example application directly on Android phones by visiting scanning the QR code on [this site](https://exp.host/@react-navigation/NavigationPlayground) with the [Expo app](https://play.google.com/store/apps/details?id=host.exp.exponent&hl=en).

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-navigation",
-  "version": "4.0.5",
+  "version": "4.0.6",
   "description": "Routing and navigation for your React Native apps",
   "main": "src/react-navigation.js",
   "types": "typescript/react-navigation.d.ts",

src/react-navigation.js

@@ -1,4 +1,29 @@
 export * from '@react-navigation/core';
 export * from '@react-navigation/native';
 
-export * from './deprecations';
+// Export each item individually so that they can be evaluated lazily
+// https://babeljs.io/docs/en/babel-plugin-transform-modules-commonjs#lazy
+export {
+  createNavigationContainer,
+  createStackNavigator,
+  createBottomTabNavigator,
+  createMaterialTopTabNavigator,
+  createDrawerNavigator,
+  StackGestureContext,
+  DrawerGestureContext,
+  DrawerRouter,
+  DrawerActions,
+  Transitioner,
+  StackView,
+  StackViewCard,
+  StackViewTransitionConfigs,
+  Header,
+  HeaderTitle,
+  HeaderBackButton,
+  HeaderStyleInterpolator,
+  DrawerView,
+  DrawerItems,
+  DrawerSidebar,
+  BottomTabBar,
+  MaterialTopTabBar,
+} from './deprecations';

typescript/react-navigation.d.ts

@@ -345,7 +345,7 @@ declare module 'react-navigation' {
 
   export interface NavigationJumpToActionPayload {
     routeName: string;
-    key: string;
+    key?: string;
     params?: NavigationParams;
   }
 
@@ -619,7 +619,7 @@ declare module 'react-navigation' {
   export function createSwitchNavigator(
     routeConfigMap: NavigationRouteConfigMap<SwitchNavigatorConfig, NavigationScreenProp<NavigationRoute>>,
     switchConfig?: SwitchNavigatorConfig
-  ): NavigationContainer;
+  ): NavigationNavigator<{}, NavigationProp<NavigationState>>;
 
   /**
    * NavigationActions
@@ -754,9 +754,9 @@ declare module 'react-navigation' {
   export function createNavigator<S, Options>(
     view: NavigationView<Options, S>,
     router: NavigationRouter<S, Options>,
-    navigatorConfig?: {} | null,
+    navigatorConfig?: {},
     navigatorType?: NavigatorType
-  ): any;
+  ): NavigationNavigator<Options, NavigationProp<NavigationState>>;
 
   /**
    * Create an HOC that injects the navigation and manages the navigation state