Using '\.' instead of 'source' causes error in Devuan Daedalus/Debian 12's version of neomutt

[cyberme0w]

Hi! First of all, thanks for taking the time and developing such an easy-to-use setup wizard.

I did run into a small bug regarding sourcing the switch.muttrc file. I'm using Devuan Daedalus (Debian 12/Bookworm) and after setting up my account, neomutt complains about the following unknown command:

Error in /home/user/.config/mutt/accounts/my-account.muttrc, line 12: .: unknown command

Some other errors also popped up, but they were all related to the \. command - since neomutt was unable to source this account file - and went away when replacing it with source.

I looked for similar issues but couldn't find any, so I've opened this one, however I assume this has to do with the fact that Debian/Devuan's current neomutt version is still from 2022 (20220429) and might be fixed in more recent versions.