fix: Native platform - LwjglCanvas (example)

[JNightRider]

Since lwjgl3 is the default module in the jme3 examples, enabling (forcing) it to use x11 for the awt canvas is already part of this example to make it work on Wayland (and not appear to have a bug)... since awt/swing still relies on x11 to manage its graphical components (this does not affect functionality on other platforms except Linux with Wayland).

[gemini-code-assist]

Summary of Changes

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This pull request resolves a compatibility issue for the LwjglCanvas example, specifically TestCanvas, when executed on Linux environments utilizing Wayland. By explicitly configuring the AppSettings to prefer the X11 platform, it ensures that AWT/Swing components, which depend on X11 for graphical management, operate correctly, preventing the example from appearing non-functional on Wayland.

Highlights

• LwjglCanvas Example Compatibility: Explicitly set x11PlatformPreferred(true) in AppSettings for the TestCanvas example to ensure proper functioning on Linux systems using Wayland, as AWT/Swing components still rely on X11.

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[gemini-code-assist]

Code Review

This pull request addresses an issue with running AWT-based examples on Linux with Wayland by forcing the use of an X11 context. The change is correct and well-contained within the example. The suggestion to include a comment explaining the purpose of this setting for future reference is valid and will improve code clarity for other developers looking at this example.

[gemini-code-assist]

While the PR description explains the reason for this change, it would be beneficial to add a comment here in the code. This example serves as a reference for users, and a comment would clarify why this setting is necessary for AWT canvas integration on platforms like Wayland.

Suggested change

	settings.setX11PlatformPreferred(true);
	// On Linux with Wayland, AWT/Swing requires an X11 context.
	// This forces the jME context to use X11 (via GLX) to be compatible.
	settings.setX11PlatformPreferred(true);