fix: add missing in HeaderBackButtonProps in flow and TS definitions (#6048)

packages/react-navigation/CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## Fixes
 - Fix `navigationOptions` type from `NavigationScreenProp<NavigationRoute>` to `NavigationScreenConfig<Options>`.
 - Fix missing `isFirstRouteInParent` type in typescript and flow.
+- Add missing `backTitleVisible` for typescript, `disabled` and `backTitleVisible` for flow definitions in type `HeaderBackButtonProps`
 
 ## [3.11.0]
 

packages/react-navigation/flow/react-navigation.js

@@ -1129,6 +1129,8 @@ declare module 'react-navigation' {
     tintColor?: ?string,
     truncatedTitle?: ?string,
     width?: ?number,
+    disabled?: boolean,
+    backTitleVisible?: boolean,
   };
   declare export var HeaderBackButton: React$ComponentType<_HeaderBackButtonProps>;
 

packages/react-navigation/typescript/react-navigation.d.ts

@@ -1397,6 +1397,7 @@ declare module 'react-navigation' {
     truncatedTitle?: string;
     width?: number;
     disabled?: boolean;
+    backTitleVisible?: boolean;
   }
 
   export const HeaderBackButton: React.ComponentClass<HeaderBackButtonProps>;