Added refresh button on managed java list

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

launcher/ui/pages/global/JavaPage.h

@@ -77,6 +77,7 @@ class JavaPage : public QWidget, public BasePage {
     void on_removeExtraPathButton_clicked();
     void on_downloadJavaButton_clicked();
     void on_removeJavaButton_clicked();
+    void on_refreshJavaButton_clicked();
     void on_maxMemSpinBox_valueChanged(int i);
     void checkerFinished();