Add upvote and downvote buttons beneath thumbnails on the post index page. This is disabled by default. To enable it, click the "..." menu in the top right of the page, then click "Show scores". This is currently a per-search setting, not an account setting. If you enable it in one tab, it won't be enabled in other tabs.
Components
Components are used to encapsulate common UI widgets used throughout the site. This includes things like comments, tag lists, post thumbnails, paginators, and other things used repeatedly throughout the site. Components encapsulate a widget's HTML, CSS, and Javascript together so that all the code for a component is in a single place.
This uses the ViewComponent library.
Components are similar in concept to React components.