fix: fix the canvas tearing problem with lwjglx.

Author: JNightRider

jme3-lwjgl3/src/main/java/com/jme3/system/lwjgl/LwjglCanvas.java

@@ -74,10 +74,10 @@
 import org.lwjgl.opengl.awt.GLData;
 
 import org.lwjgl.system.Configuration;
+import org.lwjgl.system.Platform;
 
 import static org.lwjgl.system.MemoryUtil.*;
 import static com.jme3.system.lwjglx.LwjglxDefaultGLPlatform.*;
-import org.lwjgl.system.Platform;
 
 /**
  * Class <code>LwjglCanvas</code> that integrates <a href="https://github.com/LWJGLX/lwjgl3-awt">LWJGLX</a>