fix(ui): prevents perPage blink

[jacobsfletch]

When defining a custom admin.pagination.defaultLimit, the PerPage component would blink in the base sanitization values before being replaced by the proper values defined in the config (if no limit preference set and no ?page= in search params). This was because the list view was relying on the client config to be propagated through React context before those values could be read, requiring an entire rendering cycle before this takes place.