Add basic prefences window with text editor command field

include/ui/preferenceeditor.h

@@ -0,0 +1,31 @@
+#ifndef PREFERENCES_H
+#define PREFERENCES_H
+
+#include <QMainWindow>
+
+class QAbstractButton;
+
+
+namespace Ui {
+class PreferenceEditor;
+}
+
+class PreferenceEditor : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit PreferenceEditor(QWidget *parent = nullptr);
+    ~PreferenceEditor();
+
+private:
+    Ui::PreferenceEditor *ui;
+
+    void populateFields();
+    void saveFields();
+
+private slots:
+    void dialogButtonClicked(QAbstractButton *button);
+};
+
+#endif // PREFERENCES_H