Set `device` to `false` for all pages which don't specify device readiness

Summary:
Ref T5446.

  - For all callsites which do not specify a value, set `false` explicitly.
  - Make `true` the default.

Test Plan: Used `grep`, then manually went through everything.

Reviewers: chad

Reviewed By: chad

Subscribers: epriestley

Maniphest Tasks: T5446

Differential Revision: https://secure.phabricator.com/D9687