add open java folder action

Signed-off-by: Trial97 <alexandru.tripon97@gmail.com>

launcher/ui/MainWindow.cpp

@@ -233,6 +233,8 @@ MainWindow::MainWindow(QWidget* parent) : QMainWindow(parent), ui(new Ui::MainWi
         if (qgetenv("XDG_CURRENT_DESKTOP") == "gamescope") {
             ui->mainToolBar->addAction(ui->actionCloseWindow);
         }
+
+        ui->actionViewJavaFolder->setVisible(BuildConfig.JAVA_DOWNLOADER_ENABLED);
     }
 
     // add the toolbar toggles to the view menu
@@ -1223,6 +1225,11 @@ void MainWindow::on_actionViewLogsFolder_triggered()
     DesktopServices::openPath("logs", true);
 }
 
+void MainWindow::on_actionViewJavaFolder_triggered()
+{
+    DesktopServices::openPath(APPLICATION->javaPath(), true);
+}
+
 void MainWindow::refreshInstances()
 {
     APPLICATION->instances()->loadList();