bring window to front

[ci skip]

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

@@ -26,6 +26,7 @@ public interface MainWindowComponent {
 		Stage stage = window();
 		stage.setScene(scene().get());
 		stage.show();
+		stage.requestFocus();
 	}
 
 	@Subcomponent.Builder

main/ui/src/main/java/org/cryptomator/ui/preferences/PreferencesComponent.java

@@ -27,6 +27,7 @@ public interface PreferencesComponent {
 		Stage stage = window();
 		stage.setScene(scene().get());
 		stage.show();
+		stage.requestFocus();
 	}
 
 	@Subcomponent.Builder