QGCViewDialog: accept the numlock enter key in addition to the return key

helpful for example when editing parameters

src/QmlControls/QGCViewDialog.qml

@@ -31,7 +31,7 @@ FactPanel {
         if (event.key == Qt.Key_Escape) {
             reject()
             event.accepted = true
-        } else if (event.key == Qt.Key_Return) {
+        } else if (event.key == Qt.Key_Return || event.key == Qt.Key_Enter) {
             accept()
             event.accepted = true
         }