Fixed size initialization bug regarding correct computation of scenesize

client/src/main/java/envoy/client/ui/SceneContext.java

@@ -129,6 +129,7 @@ public final class SceneContext {
 			// The LoginScene is the only scene not intended to be resized
 			// As strange as it seems, this is needed as otherwise the LoginScene won't be
 			// displayed on some OS (...Debian...)
+			stage.sizeToScene();
 			Platform.runLater(() -> stage.setResizable(sceneInfo != SceneInfo.LOGIN_SCENE));
 			applyCSS();
 			stage.show();