fy the components into one?</p>
<p>The <code>is-active</code> class is responsible for showing the active icon.
<em>How</em> that icon is rendered may change over time,
so we won't use <code>...attributes</code> to apply the <code>is-active</code> class.
Instead, we'll pass the argument <code>@isActive</code> to dictate <em>what</em> to do (e.g. render the icon).</p>
<p>As for the <code>current-user</code> class, it may have been just one of a few classes
that can be applied to the <code>&lt;aside&gt;</code