[chore] add javafx.desktop module

src/main/java/module-info.java

 module eu.telecomnancy.javafx {
     requires javafx.controls;
     requires javafx.fxml;
+    requires java.desktop;
     opens eu.telecomnancy.javafx to javafx.fxml;
     opens eu.telecomnancy.javafx.controller to javafx.fxml;