Add Chaptarr/chaptarr

Is there an existing issue for this?

• I have searched the existing open and closed issues

Is your feature request related to a problem? Please describe

Prior issue: #2578

API seems more stable now: https://github.com/Chaptarr/chaptarr

Describe the solution you'd like

Add chaptarr as an option

Describe alternatives you've considered

using readarr instead

Anything else?

n/a