Notebook CLI widget makes it hard to copy-paste notebook URL

[TomNicholas]

If I have a small terminal window, such that the notebook URL spans multiple lines, then copying the notebook URL leads to spurious | characters and spaces in the URL

e.g.

https://cluster-oukcx.dask.host/jupyter/lab/tree/synced?token=Y0ckV1-gxxuG0b │
│ 4q