Fix a double include I missed

src/mainwindow.cpp

@@ -8,9 +8,9 @@
 
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent)
-    , initializing(true)
     , ui(new Ui::MainWindow)
     , settings("qdiskinfo", "qdiskinfo")
+    , initializing(true)
 {
     ui->setupUi(this);
 

src/mainwindow.h

@@ -4,7 +4,6 @@
 #include <QActionGroup>
 #include <QJsonObject>
 #include <QMainWindow>
-#include <QMainWindow>
 #include <QMouseEvent>
 #include <QSettings>
 #include <QTableWidget>
@@ -34,14 +33,23 @@ public:
 
 private slots:
     void on_actionQuit_triggered();
+
     void on_actionSave_JSON_triggered();
+
     void on_actionGitHub_triggered();
+
     void on_actionRescan_Refresh_triggered();
+
     void on_actionAbout_triggered();
+
     void on_actionIgnore_C4_Reallocation_Event_Count_toggled(bool enabled);
+
     void on_actionHEX_toggled(bool enabled);
+
     void on_actionUse_Fahrenheit_toggled(bool enabled);
+
     void on_actionCyclic_Navigation_toggled(bool arg1);
+
     void on_actionUse_GB_instead_of_TB_toggled(bool arg1);
 
 private: