If night-mode is disabled on a certain page via the
exclude list in skin.json, then the following class:
".skin-theme-clientpref-excluded" will be added to the HTML element.
In this scenario, the related client-preferences
menu options are visible, but disabled, and a notice
is rendered below the options informing users of this state.
Bug: T361158
Change-Id: I46d335d079a2d27c7a4122e23ac7e479c286b886
* Using the new ConfigHelper, support disabling night mode on certain
pages via configuration options
* In addition, adds test coverage for this case and the query parameter
case (in a new integration test file as we now require accessing the
service container for request context)
* Finally, supply a default configuration in skin.json with all the
values set to null
For the easiest possible approach while we evaulate our general feature
management system, this logic is handled inside of getFeatureBodyClass
using the new shouldDisable general function. In the future, it may
make sense to break this out into its own requirement class, but for now
that feels premature
Bug: T359606
Change-Id: I3e7a4720ec3cc2afd9777e36f59aa56b682258f0
