git: openjdk/jfx-sandbox: johanvos-headless: Fix fullscreen tests

[duke]

Changeset: 268cb701
Branch: johanvos-headless
Author:    Johan Vos <johan at lodgon.com>
Date:      2024-09-20 22:11:39 +0000
URL:       https://git.openjdk.org/jfx-sandbox/commit/268cb701fd92b0522dedb8069150a1b21cbd7430

Fix fullscreen tests
Add default clipboard functionality

! modules/javafx.graphics/src/main/java/com/sun/glass/ui/headless/HeadlessPlatformFactory.java
! modules/javafx.graphics/src/main/java/com/sun/glass/ui/headless/HeadlessView.java
! modules/javafx.graphics/src/main/java/com/sun/glass/ui/headless/HeadlessWindow.java