Add option to close flameshot after every capture

src/core/controller.cpp

@@ -244,10 +244,17 @@ void Controller::handleCaptureTaken(uint id, QPixmap p) {
         it.value().exportCapture(p);
         m_requestMap.erase(it);
     }
+    if (ConfigHandler().closeAfterScreenshotValue()) {
+        QApplication::quit();
+    }
 }
 
 void Controller::handleCaptureFailed(uint id) {
     m_requestMap.remove(id);
+
+    if (ConfigHandler().closeAfterScreenshotValue()) {
+        QApplication::quit();
+    }
 }
 
 void Controller::doLater(int msec, QObject *receiver, lambda func)  {