[Qt] Delete "ui" pointer in destructor

rpcs3/rpcs3qt/about_dialog.cpp

@@ -25,3 +25,8 @@ about_dialog::about_dialog(QWidget* parent) : QDialog(parent), ui(new Ui::about_
 
 	layout()->setSizeConstraint(QLayout::SetFixedSize);
 }
+
+about_dialog::~about_dialog()
+{
+	delete ui;
+}

rpcs3/rpcs3qt/about_dialog.h

@@ -13,6 +13,7 @@ class about_dialog : public QDialog
 
 public:
 	explicit about_dialog(QWidget* parent = nullptr);
+	~about_dialog();
 
 private:
 	Ui::about_dialog *ui;

rpcs3/rpcs3qt/main_window.cpp

@@ -53,6 +53,7 @@ main_window::main_window(std::shared_ptr<gui_settings> guiSettings, QWidget *par
 
 main_window::~main_window()
 {
+	delete ui;
 }
 
 auto Pause = []()

rpcs3/rpcs3qt/settings_dialog.cpp

@@ -878,6 +878,11 @@ settings_dialog::settings_dialog(std::shared_ptr<gui_settings> xSettings, const
 	layout()->setSizeConstraint(QLayout::SetFixedSize);
 }
 
+settings_dialog::~settings_dialog()
+{
+	delete ui;
+}
+
 void settings_dialog::AddConfigs()
 {
 	ui->combo_configs->clear();

rpcs3/rpcs3qt/settings_dialog.h

@@ -21,6 +21,7 @@ class settings_dialog : public QDialog
 
 public:
 	explicit settings_dialog(std::shared_ptr<gui_settings> xSettings, const Render_Creator& r_Creator, const int& tabIndex = 0, QWidget *parent = 0, const GameInfo *game = nullptr);
+	~settings_dialog();
 	int exec();
 Q_SIGNALS:
 	void GuiSettingsSyncRequest();

rpcs3/rpcs3qt/welcome_dialog.cpp

@@ -35,3 +35,8 @@ welcome_dialog::welcome_dialog(QWidget* parent) : QDialog(parent), ui(new Ui::we
 
 	layout()->setSizeConstraint(QLayout::SetFixedSize);
 }
+
+welcome_dialog::~welcome_dialog()
+{
+	delete ui;
+}

rpcs3/rpcs3qt/welcome_dialog.h

@@ -15,6 +15,7 @@ class welcome_dialog : public QDialog
 
 public:
 	explicit welcome_dialog(QWidget* parent = nullptr);
+	~welcome_dialog();
 
 private:
 	Ui::welcome_dialog *ui;