* Fix fixed size window sizing

* Fix device config windows not appearing centered and modal under Wayland

src/qt/qt_settings.cpp

@@ -97,6 +97,7 @@ int SettingsModel::rowCount(const QModelIndex &parent) const {
     return pages.size();
 }
 
+Settings* Settings::settings = nullptr;;
 Settings::Settings(QWidget *parent) :
     QDialog(parent),
     ui(new Ui::Settings)
@@ -142,6 +143,8 @@ Settings::Settings(QWidget *parent) :
     connect(ui->listView->selectionModel(), &QItemSelectionModel::currentChanged, this, [this](const QModelIndex &current, const QModelIndex &previous) {
         ui->stackedWidget->setCurrentIndex(current.row());
     });
+
+    Settings::settings = this;
 }
 
 Settings::~Settings()
@@ -149,6 +152,7 @@ Settings::~Settings()
     delete ui;
     delete Harddrives::busTrackClass;
     Harddrives::busTrackClass = nullptr;
+    Settings::settings = nullptr;
 }
 
 void Settings::save() {