* build - declare background as html
* build - fill in empty file when a missing file is expected
* lint - fix
* Update development/build/manifest.js
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
* Update development/build/manifest.js
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
Co-authored-by: Mark Stacey <markjstacey@gmail.com>