Do not consider moved accounts as non-functional

This might be somewhat controversial, but putting a redirection up
makes the account unusable, which works against use cases such as
using the moved account as backup in case the new one temporarily fails
(sure, the redirection can be temporarily removed, but it is a hassle)

app/models/user.rb

@@ -169,7 +169,7 @@ class User < ApplicationRecord
   end
 
   def functional?
-    confirmed? && approved? && !disabled? && !account.suspended? && account.moved_to_account_id.nil?
+    confirmed? && approved? && !disabled? && !account.suspended?
   end
 
   def unconfirmed_or_pending?