Merge branch '750-flickering-in-jxbrowser' into 'master'

Resolve "Flickering in JxBrowser"

Closes #750

See merge request bright-giant/sirius/sirius-frontend!368

Author: Markus Fleischauer

sirius_gui/src/main/java/de/unijena/bioinf/ms/gui/webView/jxbrowser/JxBrowserPanelProvider.java

@@ -11,7 +11,7 @@
 
 import java.net.URI;
 
-import static com.teamdev.jxbrowser.engine.RenderingMode.HARDWARE_ACCELERATED;
+import static com.teamdev.jxbrowser.engine.RenderingMode.OFF_SCREEN;
 
 public class JxBrowserPanelProvider extends BrowserPanelProvider<JxBrowserPanel> {
     private final Engine jxBrowserEngine;
@@ -28,7 +28,7 @@ public JxBrowserPanelProvider(@NotNull URI baseUrl) {
 
     private static Engine setupEngine(){
         EngineOptions opts = EngineOptions
-                .newBuilder(HARDWARE_ACCELERATED)
+                .newBuilder(OFF_SCREEN)
                 .licenseKey(PropertyManager.getProperty("jxbrowser.license.key"))
                 .disableTouchMenu()
                 .enableIncognito() // no storage dir, all in memory, fresh state after every start.