修复 由于将“user_id”错误地改为“uid”而导致在群聊场景下“@用户”的功能中，消息内容里的已读未读图标无法显示的问题。

components/uni-im-chat-input/uni-im-chat-input.vue

@@ -203,7 +203,7 @@
         // console.log('focus');
         this.$refs.editor.callRmd('$focus')
       },
-      async addCallUser({uid, nickname},needDeleteLeftART = true,DL=0) {
+      async addCallUser({user_id, nickname},needDeleteLeftART = true,DL=0) {
         // 隐藏发送语音消息模式
         this.soundIsShow = false;
         
@@ -222,7 +222,7 @@
         await uniIm.utils.sleep(10)
         
         // 提醒末尾的此空格在margin-right: -3px;内，用于解决办法浏览器非文本节点后的光标定位不正确的问题
-        const html =`<span class="nickname" contenteditable="false" uid="${uid}">@${nickname}</span>&nbsp;`
+        const html =`<span class="nickname" contenteditable="false" user_id="${user_id}">@${nickname}</span>&nbsp;`
         this.addHtmlToCursor(html)
         // setTimeout(()=>this.$refs.editor.callRmd('$restoreCursor'),500)
       },

components/uni-im-editor/uni-im-editor.vue

@@ -360,7 +360,7 @@
             // "rich-text": //uniIm.utils.parseHtml( 执行比较消耗内存，改为chat页面 confirm时执行,
             "html": val,
             "text": uniImEditor.innerText,
-            "aboutUserIds": Array.from(uniImEditor.querySelectorAll('.nickname')).map(i=>i.getAttribute('uid'))
+            "aboutUserIds": Array.from(uniImEditor.querySelectorAll('.nickname')).map(i=>i.getAttribute('user_id'))
           }
         } else {
           param = this.$inputText()

pages/chat/chat.vue

@@ -943,10 +943,10 @@
           msgListRef.showLast(duration)
         }
       },
-      onLongpressMsgAvatar(uid){
+      onLongpressMsgAvatar(user_id){
         // 当前输入框已经@了的用户id 要过滤掉
         let callUidList = this.getCallUid()
-        if(callUidList.includes(uid)){
+        if(callUidList.includes(user_id)){
           console.log('此用户id已经@过');
           uni.showToast({
             title: '此用户已经@过',
@@ -955,15 +955,15 @@
         }else{
           this.$refs['chat-input'].raiseEditor = true
           this.$nextTick(()=>{
-            this.setCallAboutUid(uid,false)
+            this.setCallAboutUid(user_id,false)
           })
         }
       },
-      setCallAboutUid(uid,needDeleteLeftART = true) {
+      setCallAboutUid(user_id,needDeleteLeftART = true) {
         this.aboutMenberIsShow = false
         this.$refs['chat-input'].addCallUser({
-          uid,
-          nickname: this.group_member[uid].users.nickname
+          user_id,
+          nickname: this.group_member[user_id].users.nickname
         },needDeleteLeftART,this.aboutUserKeyword.length)
       },
       linechange(e) {