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

hurali97 merged 2 commits intocallstack:maincallstack/react-native-brownfield:mainfrom

marcinszalski-callstack:feature/227_mBackPressedCallback_not_re_enabled_after_hardware_back_handler_is_calledmarcinszalski-callstack/react-native-brownfield:feature/227_mBackPressedCallback_not_re_enabled_after_hardware_back_handler_is_calledCopy head branch name to clipboard