* enforce session timeout policy
* better angular validation
* lint fix
* missing switch break
* fallback when timeout not supported with highest available timeout
* failing unit tests
* incorrect policy message
* vault timeout type adjustments
* fallback to "on browser refresh" for browser, when policy is set to "on system locked", but not available (Safari)
* docs, naming improvements
* fallback for current user session timeout to "on refresh", when policy is set to "on system locked", but not available.
* don't display policy message when the policy does not affect available timeout options
* 8 hours default when changing from non-numeric timeout to Custom.
* failing unit test
* missing locales, changing functions access to private, docs
* removal of redundant magic number
* missing await
* await once for available timeout options
* adjusted messaging
* unit test coverage
* vault timeout numeric module exports
* unit test coverage