[ngx-flicking] Minimal example requires clicking on container to enable dragging

[alechemy]

Example here: https://codesandbox.io/p/github/alechemy/ngx-flicking-bug/main

Steps to reproduce:

1. Drag on a panel
2. Note that panel doesn't move
3. Click panel, try dragging again
4. Panel should now move; if not, repeat step 3