Describe the bug

When adding a marker with an empty label, the demo displays [object object] as label.

Expected behavior

If label is not defined or empty, then no label should be displayed.

Minimal reproducible example

• Go to https://addonsv24-staging.flowingcode.com/googlemaps/addmarkers (or run the demo locally).
• Check the "With Label" checkbox but leave the label text field empty.
• Click "Add Marker" button and observe [Object Object] label bieng displayed on the marker.

Add-on Version

2.3.0-SNAPSHOT

Vaadin Version

24.8.x

Additional information

Not sure if the problem is the demo implementation or how the feature responds to an empty label. Will investigate.