Order of includes and forward declarations

Fix the alphabetical order of all includes and forward declarations.

include/SetupDialog.h

@@ -35,11 +35,11 @@
 #include "MidiSetupWidget.h"
 
 
+class QCheckBox;
 class QComboBox;
 class QLabel;
 class QLineEdit;
 class QSlider;
-class QCheckBox;
 
 
 namespace lmms::gui

src/core/audio/AudioJack.cpp

@@ -26,9 +26,9 @@
 
 #ifdef LMMS_HAVE_JACK
 
+#include <QFormLayout>
 #include <QLineEdit>
 #include <QMessageBox>
-#include <QFormLayout>
 
 #include "Engine.h"
 #include "GuiApplication.h"

src/core/audio/AudioPulseAudio.cpp

@@ -22,8 +22,8 @@
  *
  */
 
-#include <QLineEdit>
 #include <QFormLayout>
+#include <QLineEdit>
 
 #include "AudioPulseAudio.h"
 

src/gui/modals/SetupDialog.cpp

@@ -23,14 +23,14 @@
  */
 
 
+#include <QCheckBox>
 #include <QComboBox>
+#include <QGroupBox>
 #include <QImageReader>
 #include <QLabel>
 #include <QLayout>
 #include <QLineEdit>
 #include <QScrollArea>
-#include <QGroupBox>
-#include <QCheckBox>
 
 #include "AudioEngine.h"
 #include "debug.h"