Replace plotly with niivue

[36000]

https://github.com/niivue/ipyniivue?tab=readme-ov-file

[36000]

Once we have it, we can remove kaleido and plotly, and kaleido is quite a large dependency

We could use it to show 8 views:

1. 3d like MI-brain
   2,3,4. Slices like ipyniivue default
   5,6,7. Slices like mriview to see individual streamline locations as dots/short segments (or density map)
2. Tract profiles panel