Indicate pending approval list is incomplete #102
Description
The list on Special:PendingApprovals is limited to 500 entries when using DatabasePendingApprovalRetriever (which does the limiting).
AC: If there are more pending approvals (so if we run into this limit), show a message on the page indicating that the list shows the first 500 and is incomplete. Show this message above that table, replacing the standard one
Possible implementation method: change limit to 501 in DatabasePendingApprovalRetriever. Only show first 500 on the page. If the 501th item is in the array, also show the message.