GH-4699 Add global datapacks support to Modrinth exporter

launcher/ui/dialogs/ModrinthExportDialog.h

@@ -28,6 +28,7 @@ public:
 
 private slots:
     void on_fileBrowseButton_clicked();
+    void on_datapackPathBrowse_clicked();
     void accept() override;
     void updateDialogState();