[Bug] roi-selector not correctly preventing default on-click behaviour (e.g. for well image)

**Describe the bug**  

?source=https://livingobjects.ebi.ac.uk/idr/zarr/v0.5/idr0090/190129.zarr&roi=1

On-click opens the individual well in a new tab AND initiates drawing of the ROI. Other on-click behaviours need to be overridden by plugins.