优化留言列表中，留言内容的行间距，回复行的padding-bottom、上下居中样式等

Author: SunQQQ

src/components/MainPage/MessageBoard.vue

@@ -47,8 +47,7 @@
                       <i class='iconfont icon-buoumaotubiao23 LocationIconfont'></i>{{ item.LocationCityName }}
                     </span>
                   </div>
-                  <div class="ArticleCommentText" v-html="item.MessageText">{{ item.MessageText }}
-                  </div>
+                  <div class="ArticleCommentText" v-html="item.MessageText">{{ item.MessageText }}</div>
                   <div class="DateAnswer">
                     <div class="DateAnswerLeft">{{ item.MessageLeaveDate }}</div>
                     <div class="DateAnswerRight" @click="AnswerMessage(item.MessageLeaveName)">回复

src/static/css/BlogDetail.less

@@ -254,6 +254,7 @@
 .ArticleCommentText{
   font-size: 0.85rem;
   word-break: break-all;
+  line-height: 1.5rem;
 }
 .ArticleCommentText img{
   margin-top: 0.5rem;
@@ -264,8 +265,9 @@
 
 .DateAnswer{
   color: @FontColorGrayDeep;
-  .myflex('middle');
+  .myflex(center);
   width: 100%;
+  padding-bottom: 0 !important;
 }
 .DateAnswerLeft{
   flex: 1;