Rename allow list predicates in UrlBlocker
What does this MR do and why?
This merge request renames the methods #domain_allowed? and #ip_allowed? in UrlBlocker for clarity.
When working in this class, I found these two _allowed? methods a bit confusing at first because it sounds like they tell us definitively if the domain or IP is allowed. They just check against the allow list, which is a part of what determines if a URI is allowed.
Related to #377371 (closed)
Edited by Luke Duncalfe