app/views/admin/issues/_issueable.html.erb
<% if issueable %>
<span class="badge bg-secondary text-white<%= ' rounded' if local_assigns[:email] %>">
<%= issueable_icon(issueable) %>
<%= link_to issueable.name,
polymorphic_url([:admin, issueable, Issue]),
class: 'text-white text-decoration-none' %>
</span>
<% end %>