优化 解决消息文本不换行的问题

components/uni-im-msg/types/rich-text.vue

 <template>
   <view class="uni-im-rich-text"
     :class="{'isFromSelf':isFromSelf, 'only1u': trBody.length === 0 &&webInfoList.length === 1 , isSingeImg}">
-    <template v-for="(item,index) in trBody" :index="index">
+    <template v-for="(item,index) in trBody" :key="index">
       <template v-if="item.name == 'span'">
         <text v-if="item.attrs && item.attrs.class == 'nickname'" class="text nickname"
           :class="{pointer:canPrivateChat}"
@@ -191,7 +191,7 @@
   
   .uni-im-rich-text .text {
     display: inline-flex;
-    word-wrap: break-word;
+    word-break: break-all;
     cursor: text;
     /* #ifdef H5 */
     @media screen and (min-device-width:960px){