[partition] Mark destructors `override`

This reduces compiler warnings related to virtual-overriding
functions: all the destructors are virtual.

src/modules/partition/core/Config.h

@@ -28,7 +28,7 @@ class Config : public QObject
 
 public:
     Config( QObject* parent );
-    virtual ~Config() = default;
+    ~Config() override = default;
 
     enum InstallChoice
     {

src/modules/partition/core/PartitionCoreModule.h

@@ -85,7 +85,7 @@ public:
     };
 
     PartitionCoreModule( QObject* parent = nullptr );
-    ~PartitionCoreModule();
+    ~PartitionCoreModule() override;
 
     /**
      * @brief init performs a devices scan and initializes all KPMcore data

src/modules/partition/gui/ChoicePage.h

@@ -54,7 +54,7 @@ class ChoicePage : public QWidget, private Ui::ChoicePage
     Q_OBJECT
 public:
     explicit ChoicePage( Config* config, QWidget* parent = nullptr );
-    virtual ~ChoicePage();
+    ~ChoicePage() override;
 
     /**
      * @brief init runs when the PartitionViewStep and the PartitionCoreModule are

src/modules/partition/gui/CreatePartitionDialog.h

@@ -45,7 +45,7 @@ public:
                            Partition* partition,
                            const QStringList& usedMountPoints,
                            QWidget* parentWidget = nullptr );
-    ~CreatePartitionDialog();
+    ~CreatePartitionDialog() override;
 
     /**
      * Must be called when user wants to create a partition in

src/modules/partition/gui/EditExistingPartitionDialog.h

@@ -36,7 +36,7 @@ public:
                                  Partition* partition,
                                  const QStringList& usedMountPoints,
                                  QWidget* parentWidget = nullptr );
-    ~EditExistingPartitionDialog();
+    ~EditExistingPartitionDialog() override;
 
     void applyChanges( PartitionCoreModule* module );
 

src/modules/partition/gui/PartitionPage.h

@@ -34,7 +34,7 @@ class PartitionPage : public QWidget
     Q_OBJECT
 public:
     explicit PartitionPage( PartitionCoreModule* core, QWidget* parent = nullptr );
-    ~PartitionPage();
+    ~PartitionPage() override;
 
     void onRevertClicked();
 

src/modules/partition/gui/ReplaceWidget.h

@@ -27,7 +27,7 @@ class ReplaceWidget : public QWidget
     Q_OBJECT
 public:
     explicit ReplaceWidget( PartitionCoreModule* core, QComboBox* devicesComboBox, QWidget* parent = nullptr );
-    virtual ~ReplaceWidget();
+    virtual ~ReplaceWidget() override;
 
     bool isNextEnabled() const;
 

src/modules/partition/gui/VolumeGroupBaseDialog.h

@@ -30,7 +30,7 @@ class VolumeGroupBaseDialog : public QDialog
 
 public:
     explicit VolumeGroupBaseDialog( QString& vgName, QVector< const Partition* > pvList, QWidget* parent = nullptr );
-    ~VolumeGroupBaseDialog();
+    ~VolumeGroupBaseDialog() override;
 
 protected:
     virtual void updateOkButton();