* Improve styles for #content-scroll-focus
* Create new class to manage and control document focus
* Use new focus class
* Add a check to prevent redundant .blur calls
* Improve styles for settings-item-button
* Add hover/active styles to settings-item-button
* Use consistent phrasing for setting buttons and include ellipsis
* Make storage controller optional
* Make more elements optional
* Update styles
* Create new welcome page
* Update URL for welcome guide
* Remove old guide
* Fix unused global