[Dovecot] Allow setting ACL_ANYONE in mailcow.conf

data/conf/dovecot/dovecot.conf

@@ -291,7 +291,7 @@ protocol sieve {
 }
 plugin {
   # Allow "any" or "authenticated" to be used in ACLs
-  #acl_anyone = allow
+  acl_anyone = </usr/local/etc/dovecot/acl_anyone
   acl_shared_dict = file:/var/vmail/shared-mailboxes.db
   acl = vfile
   quota = dict:Userquota::proxy::sqlquota