I am running sagemath 9.8 with jupyter_core 4.11.2 and jupyter_client 7.4.4. I access the sagemath notebook in firefox 116.0.2 on an Ubuntu 22.04 machine. I would like to enable middle-button paste in the jupyter notebook. My understanding from stack overflow is that this requires that sagemath's jupyter use codemirror 5.44.0. That link claims that as of jupyter 6.0.2, it does use a recent enough version of codemirror. I do not know if jupyter_core 4.11.2 and jupyter_client 7.4.4 is recent enough or if there is somethign else I need to do to enable middle-button paste in sage's jupyter.