* Upgrade primer to 16
* Upgrade colors in scss
* Get SCSS to build
* Initial dark mode support
* trashcan -> trash
* More specific search browser test
* Fix link color on homepage
* Update overrides.scss
* Upgrade some colors to primer variables
* Hide dark mode support for now
* Apply suggestions from code review
* Update overrides.scss
* Add back changes from prior to purge
* Manually fix some invalid Liquid
* Updoot render-content
* Improve test messages to show correct output
* Run el scripto
* Pass the remaining test
* remove FEATURE_NEW_VERSIONS from feature-flags.json
* remove process.env.FEATURE_NEW_VERSIONS from include files
* remove process.env.FEATURE_NEW_VERSIONS from lib files
* remove process.env.FEATURE_NEW_VERSIONS from middleware files
* remove process.env.FEATURE_NEW_VERSIONS from script files
* remove process.env.FEATURE_NEW_VERSIONS from test files
* update test fixtures to use new versions as canonical fixtures