"No account had a valid registration" error

[itsjunetime]

Originally posted by @Hellohi3654 in #1 (comment)

On some devices, this tweak runs into an error stating that no accounts had a valid registration. This error log, specifically, is caused by all the IDSDAccounts in identitservicesd having a nil registration property. Since, in this current version of the tweak, we need at least one non-nil registration object to get the process started, this causes the tweak to fail.

I can reproduce this issue on my test device, so I'll be working on it next once I resolve some of the other, more common, issues, but anyone else is free to take a shot at it if they would like :)