修复 消息发送者为非staff角色的管理员时，不能点击的问题

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

@@ -125,8 +125,9 @@
         if(this.uniIDHasRole('staff')){
           return true
         }
-        const {group_member} = uniIm.convasation?.dataList?.find(item => item.id === this.msg.conversation_id)||{}
-        return group_member ? group_member[currentUserId]?.role.includes('admin') : false
+        const {conversation_id,from_uid} = this.msg
+        const {group_member} = uniIm.conversation.getCached(conversation_id)
+        return group_member ? group_member[from_uid]?.role.includes('admin') : false
       }
     },
     methods: {