Add class to align crate icon with crate name in heading
<div id='crates-heading' data-test-heading>
<div class="wide">
<div class='info'>
- {{svg-jar "crate"}}
+ {{svg-jar "crate" class='crate-icon'}}
<h1 data-test-crate-name>{{ crate.name }}</h1>
<h2 data-test-crate-version>{{ currentVersion.num }}</h2>
</div>
