ENH: Split whats_new

[larsoner]

https://mne.tools/dev/whats_new.html is super long. It would probably be nicer to just show the changes from the previous version, but have links to the others in one of the sidebars if possible.

@drammock is this sort of thing possible with a hidden toctree or something?

[hoechenberger]

For MNE-BIDS we basically have only the latest version's changes visible, and then there is a link to that huge list of all previous changes. Seems to work quite nicely.

https://mne.tools/mne-bids/stable/whats_new.html

[larsoner]

That would be fine, too!

[sappelhoff]

just saying: I like the super-long changelog that has everything in it. It makes searching quite easy while the sidebar with its links still makes the length manageable.