feat: add headerBackTitleVisible option to navigation options

Author: satya164

src/types.tsx

@@ -70,6 +70,7 @@ export type HeaderOptions = {
   headerBackAllowFontScaling?: boolean;
   headerBackTitle?: string;
   headerBackTitleStyle?: StyleProp<TextStyle>;
+  headerBackTitleVisible?: boolean;
   headerTruncatedBackTitle?: string;
   headerLeft?: (props: HeaderBackButtonProps) => React.ReactNode;
   headerLeftContainerStyle?: StyleProp<ViewStyle>;
@@ -106,7 +107,6 @@ export type NavigationStackOptions = HeaderOptions & {
 export type NavigationConfig = TransitionPreset & {
   mode: 'card' | 'modal';
   headerMode: HeaderMode;
-  headerBackTitleVisible?: boolean;
   cardShadowEnabled?: boolean;
   cardOverlayEnabled?: boolean;
   transparentCard?: boolean;

src/views/Header/HeaderSegment.tsx

@@ -131,6 +131,7 @@ export default class HeaderSegment extends React.Component<Props, State> {
       headerRight: right,
       headerBackImage: backImage,
       headerBackTitle: leftLabel,
+      headerBackTitleVisible,
       headerTruncatedBackTitle: truncatedLabel,
       headerPressColorAndroid: pressColorAndroid,
       headerBackAllowFontScaling: backAllowFontScaling,
@@ -181,6 +182,7 @@ export default class HeaderSegment extends React.Component<Props, State> {
                 pressColorAndroid,
                 allowFontScaling: backAllowFontScaling,
                 onPress: onGoBack,
+                labelVisible: headerBackTitleVisible,
                 label: leftLabel !== undefined ? leftLabel : previousTitle,
                 truncatedLabel,
                 labelStyle: [leftLabelStyle, customLeftLabelStyle],