[Example] Add NoTaskBarIcon config for viewports

Author: SpaiR

imgui-lwjgl3/src/test/java/ImGuiGlfwExample.java

@@ -147,6 +147,7 @@ private void setupImGui() {
 
         io.setIniFilename(null); // We don't want to save .ini file
         io.addConfigFlags(ImGuiConfigFlags.NavEnableKeyboard | ImGuiConfigFlags.DockingEnable | ImGuiConfigFlags.ViewportsEnable);
+        io.setConfigViewportsNoTaskBarIcon(true);
 
         // ------------------------------------------------------------
         // Fonts configuration