(fix): restore back-button propagation from native to RN (#288)

* * fix: restore back-button propagation from native to RN

* docs: add changeset

Author: marcinszalski-callstack

.changeset/easy-aliens-tie.md

@@ -0,0 +1,5 @@
+---
+'@callstack/react-native-brownfield': patch
+---
+
+fix: restore back-button propagation from native to RN

packages/react-native-brownfield/android/src/main/java/com/callstack/reactnativebrownfield/ReactNativeBrownfield.kt

@@ -167,19 +167,20 @@ class ReactNativeBrownfield private constructor(val reactHost: ReactHost) {
         val resolvedDelegate =
             reactDelegate ?: ReactDelegateWrapper(activity, reactHost, moduleName, launchOptions)
 
-        val mBackPressedCallback: OnBackPressedCallback = object : OnBackPressedCallback(true) {
+        val backPressedCallback: OnBackPressedCallback = object : OnBackPressedCallback(true) {
             override fun handleOnBackPressed() {
                 // invoked for JS stack back navigation
                 resolvedDelegate.onBackPressed()
             }
         }
 
         // Register back press callback
-        activity?.onBackPressedDispatcher?.addCallback(mBackPressedCallback)
+        activity?.onBackPressedDispatcher?.addCallback(backPressedCallback)
         // invoked on the last RN screen exit
         resolvedDelegate.setHardwareBackHandler {
-            mBackPressedCallback.isEnabled = false
+            backPressedCallback.isEnabled = false
             activity?.onBackPressedDispatcher?.onBackPressed()
+            backPressedCallback.isEnabled = true
         }
 
         /**