修复聊天列表key重复bug

im-ui/src/view/Friend.vue

@@ -13,7 +13,7 @@
 				</add-friend>
 			</div>
 			<el-scrollbar class="l-friend-list" >
-				<div v-for="(friend,index) in $store.state.friendStore.friends" :key="friend.id">
+				<div v-for="(friend,index) in $store.state.friendStore.friends" :key="index">
 					<friend-item v-show="friend.nickName.startsWith(searchText)" :friend="friend" :index="index" :active="index === $store.state.friendStore.activeIndex"
 					 @del="handleDelItem(friend,index)" @click.native="handleActiveItem(friend,index)">
 					</friend-item>

im-ui/src/view/Group.vue

@@ -11,7 +11,7 @@
 				 @click="handleCreateGroup()"></el-button>
 			</div>
 			<el-scrollbar class="l-group-list">
-				<div v-for="(group,index) in groupStore.groups" :key="group.id">
+				<div v-for="(group,index) in groupStore.groups" :key="index">
 					<group-item v-show="group.remark.startsWith(searchText)" :group="group" :active="index === groupStore.activeIndex"
 					 @click.native="handleActiveItem(group,index)">
 					</group-item>