templates/crate: Add missing "tan-button" style

Author: Turbo87

app/templates/crate/index.hbs

@@ -204,7 +204,7 @@
         <span class='small'>Showing stats for</span>
         <div class='button-holder'>
             <button {{action 'toggleVersions'}}
-                    class="{{if showAllVersions 'active'}} dropdown">
+                    class="tan-button {{if showAllVersions 'active'}} dropdown">
                 {{#if requestedVersion}}
                     {{ requestedVersion }}
                 {{else}}