Properly set parent for widgets (#21196)

selfdrive/ui/qt/offroad/wifiManager.cc

@@ -64,7 +64,7 @@ bool compare_by_strength(const Network &a, const Network &b) {
   return a.strength > b.strength;
 }
 
-WifiManager::WifiManager(QWidget* parent) {
+WifiManager::WifiManager(QWidget* parent) : QWidget(parent) {
   qDBusRegisterMetaType<Connection>();
   qDBusRegisterMetaType<IpConfig>();
   connecting_to_network = "";

selfdrive/ui/qt/setup/setup.cc

@@ -171,7 +171,7 @@ void Setup::nextPage() {
   setCurrentIndex(currentIndex() + 1);
 }
 
-Setup::Setup(QWidget *parent) {
+Setup::Setup(QWidget *parent) : QStackedWidget(parent) {
   addWidget(getting_started());
   addWidget(network_setup());
   addWidget(software_selection());

selfdrive/ui/qt/setup/wifi.cc

@@ -16,7 +16,7 @@ void WifiSetup::finish() {
   qApp->exit();
 }
 
-WifiSetup::WifiSetup(QWidget *parent) {
+WifiSetup::WifiSetup(QWidget *parent) : QWidget(parent) {
   QHBoxLayout *main_layout = new QHBoxLayout();
 
   QPushButton *finish_btn = new QPushButton("Exit");

selfdrive/ui/qt/spinner.cc

@@ -52,7 +52,7 @@ void TrackWidget::paintEvent(QPaintEvent *event) {
 
 // Spinner
 
-Spinner::Spinner(QWidget *parent) {
+Spinner::Spinner(QWidget *parent) : QWidget(parent) {
   QGridLayout *main_layout = new QGridLayout();
   main_layout->setSpacing(0);
   main_layout->setMargin(200);