Is not on the Manjaro priority list at this moment. manjaro-settings-samba package was not included in any ISO profile by a consensus decision at some point, if i recall correctly. How to get it working is documented in the wiki, for the same reason: Using Samba in your File Manager - Manjaro
Thanks for the information! I fixed my problem once I discovered I was missing the smb.conf. It just seemed like a good idea to include it by default, but I can understand there are reasons not to.