fix:文件共享优化

src/views/messages/MessageDetail.vue

@@ -8,8 +8,8 @@
   >
     <div class="message-detail">
       <h3>{{ messageObj.title }}</h3>
-      <div style="white-space: wrap; width: 80%">
-        {{ messageObj.content }}
+      <div style="width: 80%">
+        <p style="word-break: break-word;">{{ messageObj.content }}</p>
       </div>
       <div class="img-container">
         <el-image