Add QDebug includes to fix build failures

src/filterHotSpots/FilterChain.cpp

@@ -28,6 +28,7 @@
 #include <QEvent>
 #include <QKeyEvent>
 #include <QPainter>
+#include <QDebug>
 
 #include <algorithm>
 

src/filterHotSpots/HotSpot.cpp

@@ -21,6 +21,7 @@
 #include "HotSpot.h"
 
 #include <QMouseEvent>
+#include <QDebug>
 
 #include "widgets/TerminalDisplay.h"
 #include "FileFilterHotspot.h"