Make tokenizer browse view paging work correctly

Summary: Ref T5750. Adds a working "more results". Hard limits at 1000 results to mitigate the amount of trouble offset paging can get us into.

Test Plan:
Artificially set hard limit down; clicked through results.

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Reviewers: chad, btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T5750

Differential Revision: https://secure.phabricator.com/D12425