Fix UI bugs

            <th>Score</th>

        </tr>

        {% for k, v in qdata.answers.items() %}

        {% if qdata.best_json == k %}

        {% if (qdata.best_json == k) and (v.answer != "") %}

        <tr class="answer-detail-row submit-answer" data-json="{{k}}" data-qname="{{qname}}">

        {% else %}

        <tr class="answer-detail-row" data-json="{{k}}" data-qname="{{qname}}">

        {% endif %}

            <td>{{v.timestamp}}</td>

            <td>{{v.solver}}</td>

            <td>{{v.nlcheck}}</td>

            <td>

                {% if v.nlcheck == -1 %}

                Not solved

                {% else %}

                {{v.nlcheck}}

                {% endif %}

            </td>

        </tr>

        {% endfor %}

    </table>

</div>

<p>状況：<span id="solving-question-status">{{qdata.status}}</span></p>

<h4>結果</h4>

<p>クライアント：<span id="solved-client">{{qdata.answer.client}}</span></p>

<pre id="solved-result">{{qdata.answer.answer}}</pre>