New What's new page
Since we're starting to add 23.11 stuff to the manual, I thought it would be interesting to start the "What's new" page. Mainly to avoid having to go back and find all the new things and describe them again...
https://snipboard.io/W7QlUs.jpg
Right now, it is not linked anywhere, so you have to know the URL to access it. (This also means that the build creates an error)
source/whatsnew.rst: WARNING: document isn't included in any toctree
I'm not sure how to manage this page honestly. I think that submissions to the manual for new features or enhancements should probably have an entry in the what's new page.
I'm not married to anything I did here, so feel free to suggest relevant changes. I just wanted to add the entry for TrackLastPatronActivityTriggers while it was still fresh in my mind.