Moved from using hex QT version checks to QT_VERSION_CHECK().

cockatrice/src/tab_deck_editor.cpp

@@ -876,7 +876,7 @@ void TabDeckEditor::actOpenCustomsetsFolder() {
 void TabDeckEditor::actAddCustomSet()
 {
 
-#if QT_VERSION < 0x050000
+#if (QT_VERSION < QT_VERSION_CHECK(5, 0, 0))
     QString dataDir = QDesktopServices::storageLocation(QDesktopServices::DataLocation);
 #else
     QString dataDir = QStandardPaths::standardLocations(QStandardPaths::DataLocation).first();