Suggested approach for adding a new 'last page' link in the failure queue - issue #20

So, this is just a suggested approach for this problem. This seems to work for our case where there are sometimes bursts of > 1000 failures and you want to quickly move to the last page.
While it's always possible to manually change the URL's "start" param manually, the intention here is to have this pre made.

Very much open for suggestions on this and suggestions on how to test this correctly.