git: openjdk/jfx-sandbox: glass_gtk_bug_squashing: Fixes and tests improvements

[duke]

Changeset: 345fd593
Branch: glass_gtk_bug_squashing
Author:    Thiago Milczarek Sayao <thiago.sayao at gmail.com>
Date:      2025-04-18 09:50:08 +0000
URL:       https://git.openjdk.org/jfx-sandbox/commit/345fd593c36e443b951546354a489e352edc9373

Fixes and tests improvements

! modules/javafx.graphics/src/main/java/com/sun/glass/ui/gtk/GtkView.java
! modules/javafx.graphics/src/main/java/com/sun/glass/ui/gtk/GtkWindow.java
! modules/javafx.graphics/src/main/native-glass/gtk/GlassView.cpp
! modules/javafx.graphics/src/main/native-glass/gtk/glass_window.cpp
! modules/javafx.graphics/src/main/native-glass/gtk/glass_window.h
+ tests/manual/stage/TestStage.java
! tests/system/src/test/java/test/javafx/stage/FullScreenTests.java
! tests/system/src/test/java/test/javafx/stage/MaximizeTests.java