message: Fix display of error messages
diff: <div class="cratesfyi-package-container">
  <div class="container">
  <h1 id="crate-title">{{ title }}</h1>
  - <div class="description">
  - {{ message | default(value="") }}
  </div>
  </div>
  + <div class="description">
  + {{ message | default(value="") }}
  </div>
  {%- endblock header -%}
  