fix(vr page): restore and adjust bottom tabBar display

将注释掉的自定义底部导航组件恢复并正确嵌入到VR页面布局中，确保页面底部导航正常显示

pages_tool/vr/index.vue

@@ -2,8 +2,11 @@
 	<view :style="themeColor">
 		<view class="iconfont iconshang navigate-back" @click="navigateBack"></view>
 		<web-view :src="src"></web-view>
+		<!-- 底部tabBar -->
+		<view id="tab-bar">
+			<diy-bottom-nav></diy-bottom-nav>
+		</view>		
 	</view>
-<!-- 	<diy-bottom-nav></diy-bottom-nav> -->
 </template>
 
 <script>