[BUG] - Click drag not working anymore

[cskiwi]

Describe the bug
In the v19 the click drag with your mouse isn't working anymore

Reduced Test Case
This can be seen on the new demo site: https://timunderhay.github.io/ngx-panzoom/

the old one does still support this: https://timunderhay.github.io/ngx-panzoom-demo/

I tried setting the config to allow this but nothing seems to make it work