Add the deprecated `options_page` manifest key (#1267)
Add the deprecated `options_page` manifest key (#1267)

* Add the deprecated `options_page` manifest key

* Add link to MDN documentation

chrisdavidmills/browser-compat-data,teoli2003/browser-compat-data,mdn/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data