block moving and resizing in fullscreen

src/main/java/org/cryptomator/ui/mainwindow/MainWindowTitleController.java

@@ -73,6 +73,8 @@ public class MainWindowTitleController implements FxController {
 			}
 		});
 		titleBar.setOnMouseDragged(event -> {
+			//TODO should it be possible to move the window, when in fullscreen?
+			if (window.isFullScreen()) return;
 			window.setX(event.getScreenX() - xOffset);
 			window.setY(event.getScreenY() - yOffset);
 		});

src/main/java/org/cryptomator/ui/mainwindow/ResizeController.java

@@ -152,4 +152,9 @@ public class ResizeController implements FxController {
 		settings.windowXPositionProperty().setValue(window.getX());
 	}
 
+	public boolean isShowResizingArrows(){
+		//If in fullscreen resizing should not be possible
+		return window.isFullScreen();
+	}
+
 }