disableRawMode method
Disables raw mode and restores the terminal’s original attributes.
Implementation
@override
void disableRawMode() {
if (nullptr == _origTermIOSPointer.cast()) return;
_tcsetattr(_STDIN_FILENO, _TCSANOW, _origTermIOSPointer);
calloc.free(_origTermIOSPointer);
_origTermIOSPointer = nullptr;
}