Sort by Addressbook

There is no Sort by Adressbook feature yet. I dont need sort by groups or circles, sort by adressbook is important.

Is your feature request related to a problem? Please describe.
I cant sort my contacts by adressbook

Describe the solution you'd like
beneath the lists on the left side for groups/ungrouped i have lists for each adressbook and when i click on it only that adressbook is enabled/shown

Describe alternatives you've considered
Using another Carddav Server which supports sorting by adressbooks.
Making Seperate Nextcloud Accounts for each Adressbooks
Writing an Issue on github
Disabling and Enabling Adressbooks each time i want to see only one

Additional context
Move the tings in red down (no one needs them anyway) and place a button like the ones for groups right where the blue X is for each contact book

No source files or tests are named. Start by locating the contacts list UI and the existing group/ungrouped filtering controls described in the issue, then trace how contact books are loaded and selected. Done means each addressbook can be shown independently from the left-side list, with behavior covered by the relevant frontend tests if they exist.