Don't obscure password field after invalid password attempt if setting is off (#2353)

src/gui/PasswordEdit.cpp

@@ -71,6 +71,10 @@ void PasswordEdit::setShowPassword(bool show)
     emit showPasswordChanged(show);
 }
 
+bool PasswordEdit::isPasswordVisible() const {
+  return isEnabled();
+}
+
 bool PasswordEdit::passwordsEqual() const
 {
     return text() == m_basePasswordEdit->text();